CINXE.COM
CEMAT - Member
<!doctype html> <html> <head> <meta content="text/html; charset=utf-8" http-equiv="content-type"> <title>CEMAT - Member</title> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous"> <link rel="stylesheet" type="text/css" href="css/cemat.css" media="screen"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> </head> <body> <div id="header"> <a href="main.php"><img border="0" id="logo" name="logo" alt="CEMAT - Centro de Matem�tica e Aplica��es" src="imgs/logocemat.png" width="150" height="82"></a> <div id="header-links" class="d-none d-sm-block"> <a href="https://tecnico.ulisboa.pt" target="_blank"><img border="0" src="imgs/logoist.png" width="87" height="37"></a> <a href="https://ciencias.ulisboa.pt" target="_blank"><img border="0" src="imgs/Ciencias_Logo_Azul-01.png" width="86" height="35"></a> <a href="https://www.fct.pt" target="_blank"><img border="0" src="imgs/logo_fct20anos.png" style="margin-top:-3px;" width="185" height="49"></a> </div> <div id="lang-select"> <a href="?project_id=7&member_id=11&locale=pt">pt</a> | <a href="?project_id=7&member_id=11&locale=en">en</a> </div> </div> <nav class="navbar navbar-expand-lg navbar-dark bg-dark"><button aria-expanded="false" aria-label="Toggle navigation" aria-controls="navbarSupportedContent" class="navbar-toggler" data-toggle="collapse" data-target="#navbarSupportedContent"><span class="navbar-toggler-icon"> </span></button> <div id="navbarSupportedContent" class="collapse navbar-collapse"> <ul class="navbar-nav w-100 d-flex justify-content-around"> <!-- Home --> <li class="nav-item"><a data-menu="main" href="main.php#main" class="nav-link"><span>Home</span></a></li> <!-- Dropdown1 Areas --> <li class="nav-item dropdown"><a data-menu="area.p" href="#" aria-haspopup="true" aria-expanded="false" role="button" id="navbarDropdown1" class="nav-link dropdown-toggle" data-toggle="dropdown"><span>Research Areas</span></a> <div class="dropdown-menu rounded-0 py-0" aria-labelledby="navbarDropdown1"> <a href="area.php?section=algebra&member_id=16&project_id=7#area.p" class="dropdown-item">Algebra and Computing</a> <a href="area.php?section=applied&member_id=84&project_id=4#area.p" class="dropdown-item">Applied and Numerical Analysis</a> <a href="area.php?section=modeling&member_id=83&project_id=6#area.p" class="dropdown-item">Mathematical Modeling in Biomedicine</a> <a href="area.php?section=statistics&member_id=86&project_id=5#area.p" class="dropdown-item">Statistics and Stochastic Processes</a> </div></li> <!-- Dropdown2 Members --> <li class="nav-item"><a data-menu="members" href="members.php#members" class="nav-link"><span>Members</span></a></li> <!-- Dropdown3 Publications --> <li class="nav-item"><a data-menu="documents" href="documents.php#documents" class="nav-link"><span>Publications</span></a></li> <!-- Dropdown4 Events --> <li class="nav-item dropdown"><a data-menu="seminar" href="#" aria-haspopup="true" aria-expanded="false" role="button" id="navbarDropdown4" class="nav-link dropdown-toggle" data-toggle="dropdown"><span>Events</span></a> <div class="dropdown-menu rounded-0 py-0" aria-labelledby="navbarDropdown4"> <a href="seminars.php?event_type_id=15#seminar" class="dropdown-item">Applied and Numerical Analysis Seminar</a> <a href="seminars.php?event_type_id=16#seminar" class="dropdown-item">Probability and Statistics Seminar</a> <a href="seminars.php?event_type_id=1#seminar" class="dropdown-item">Algebra Seminars</a> <a href="seminars.php?event_type_id=17#seminar" class="dropdown-item">CEMAT's Open Seminar</a> <a href="seminars.php?event_type_id=6#seminar" class="dropdown-item">Scientific Meetings</a> <a href="seminars.php?event_type_id=5#seminar" class="dropdown-item">Courses</a> </div></li> <!-- Gallery --> <li class="nav-item"><a data-menu="projects" href="content.php?section=projects#projects" class="nav-link"><span>Projects</span></a> </li> <!-- Open Positions --> <li class="nav-item"><a data-menu="positions" href="content.php?section=positions#positions" class="nav-link"><span>Open Positions</span></a> </li> <!-- Contacts --> <li class="nav-item"><a data-menu="contacts" href="contacts.php#contacts" class="nav-link"><span>Contacts</span></a></li> </ul> </div> </nav> <div class="container"> <table id="structure" cellspacing="0"> <tr> <td style="WIDTH: 50%" valign="top"> <h2><a href="#" onclick="window.history.back();">Members</a> > PhD Members</h2> <div class="header-bar"></div> <table cellspacing="0"> <tr> <td valign="top"> <table class="contentTable" cellspacing="0"> <tr> <td> <div class="crop" style="FLOAT: right; MARGIN-TOP: 10px"> <div> <img src="./docs/gg.jpg"> </div> </div> <h3>Gracinda Gomes</h3> <p> <b>Institutional Address</b> </p> <p>Faculdade de Ciências da Universidade de Lisboa <br> <i>Av. Prof. Gama Pinto, 2 <BR>1649-003 LISBOA</i> </p> <p> <br> <i></i> </p> <p> <b>Phone:</b> +351 21 7904826 | <b>Fax:</b> +351 217954288 | <b>Email:</b> gmcunha@fc.ul.pt</p> <p> <b>Position</b> </p> <p>Full Professor, Faculdade de Ciências, Universidade de Lisboa</p> <p> <b>Area</b> </p> <p>Algebra and Computing</p> <p> <p> <b>Principal Area</b> </p> <p>Semigroup Theory</p> <p></p> <p> <b>Other Area</b> </p> <p>Languages, Automata and Computacional Algebra</p> <div> <p><b>Qualifications</b></p><ul><li>Agregação em Matemática, Universidade de Lisboa, 2002</li><li>Equivalência ao Grau de Doutor em Matemática (Álgebra e Geometria), Faculdade de Ciências, Universidade de Lisboa, 1984</li><li>Doutoramento em Matemática, Universidade de St. Andrews, Reino Unido, 1983</li><li>Licenciatura em Matemática, Faculdade de Ciências, Universidade de Lisboa, 1978</li><li>Bacharelato em Matemática, Faculdade de Ciências, Universidade de Lisboa, 1976</li></ul> </div> </td> </tr> </table> </td> </tr> </table> <br> <table class="contentTable" cellspacing="0"> <tr> <td> <table cellspacing="0"> <tr> <td><h4>Papers in International Journals</h4><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Ana-Catarina C. Monteiro (2024) <a href="document.php?project_id=7&member_id=11&doc_id=3650"> <em>Formations and i-Fitting classes of inverse semigroups, congruences and languages</em> </a>. Semigroup Forum: 109 (1), 87-115.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Ana-Catarina C. Monteiro (2023) <a href="document.php?project_id=7&member_id=11&doc_id=3620"> <em>Formations of orthodox semigroups</em> </a>. Semigroup Forum: 107, 651–679.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Nobre, Isabel J. (2022) <a href="document.php?project_id=7&member_id=11&doc_id=3542"> <em> Formations of inverse semigroups</em> </a>. Semigroup Forum: 105, 217–243.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Bernardo H. Fernandes (2021) <a href="document.php?project_id=7&member_id=11&doc_id=3428"> <em>A topological shuttle between inequalities and pseudoinequalities</em> </a>. Semigroup Forum: 102, no. 3, 916–924.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Bernardo H. Fernandes (2021) <a href="document.php?project_id=7&member_id=11&doc_id=3429"> <em> omega sharp algebras</em> </a>. Communications in Algebra: 49 (9), 3969–3999.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Pin, Jean-Éric; Soler-Escrivà, Xaro (2020) <a href="document.php?project_id=7&member_id=11&doc_id=3384"> <em>On formations of monoids</em> </a>. Journal of Pure and Applied Algebra: 224, no. 11, 106401, 24 pages.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Silva, Pedro V. (2019) <a href="document.php?project_id=7&member_id=11&doc_id=2622"> <em>On the semigroup rank of a group</em> </a>. Semigroup Forum: 99, 568-578.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=10">Araújo, João</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; <a href="member.php?member_id=68">Bentz, Wolfram</a> (2018) <a href="document.php?project_id=7&member_id=11&doc_id=3002"> <em>Congruences on direct products of transformation and matrix monoids</em> </a>. Semigroup Forum: 97, 384-416.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria; Wang, Yanhui (2018) <a href="document.php?project_id=7&member_id=11&doc_id=3004"> <em>Ehresmann monoids: adequacy and expansions</em> </a>. Journal of Algebra: 513, 344-367.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Silva, Pedro V. (2017) <a href="document.php?project_id=7&member_id=11&doc_id=2450"> <em>Takahasi semigroups</em> </a>. Forum Mathematicum: 29(5), 1145-1161.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; <a href="member.php?member_id=23">Santa-Clara, Catarina</a>; <a href="member.php?member_id=32">Soares, Filipa</a> (2015) <a href="document.php?project_id=7&member_id=11&doc_id=518"> <em>The semigroup ring of a restriction semigroup with an inverse skeleton</em> </a>. Semigroup Forum: 90 (2015), no. 2, 449–474.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2015) <a href="document.php?project_id=7&member_id=11&doc_id=2448"> <em>Ehresmann monoids</em> </a>. J. Algebra: 443, 349–382.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Ruskuc, Nik (2014) <a href="document.php?project_id=7&member_id=11&doc_id=587"> <em>John Macintosh Howie: Work and Legacy</em> </a>. Semigroup Forum: 89(1), 2-19.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2011) <a href="document.php?project_id=7&member_id=11&doc_id=512"> <em>Left adequate and left Ehresmann monoids </em> </a>. International Journal of Algebra and Computation: 21(7), 1259-1284.</ul></li></td> </tr> <tr> <td><ul><li>Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Jesus, Manuel M. (2011) <a href="document.php?project_id=7&member_id=11&doc_id=290"> <em>The cardinal and the idempotent number of various monoids of transformations on a finite chain</em> </a>. Bulletin of the Malaysian Mathematical Sciences Society: 34(1), 79–85.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2011) <a href="document.php?project_id=7&member_id=11&doc_id=493"> <em>Left adequate and left Ehresmann monoids II</em> </a>. Journal of Algebra: 348(1), 171-195.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; Gould, Victoria; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2010) <a href="document.php?project_id=7&member_id=11&doc_id=435"> <em>Extensions and covers for semigroups whose idempotents form a left regular band</em> </a>. Semigroup Forum: 81, 51-70.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2009) <a href="document.php?project_id=7&member_id=11&doc_id=314"> <em>The free ample monoid</em> </a>. International Journal of Algebra and Computation: 19(4), 527-554.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=8">Branco, Mário J. J.</a>; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2009) <a href="document.php?project_id=7&member_id=11&doc_id=312"> <em>The generalized Szendrei expansion of an R-unipotent semigroup</em> </a>. Acta Mathematica Hungarica: 123(1-2), 11-26.</ul></li></td> </tr> <tr> <td><ul><li>Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Jesus, Manuel M. (2009) <a href="document.php?project_id=7&member_id=11&doc_id=248"> <em>Congruences on monoids of transformations preserving the orientation on a finite chain</em> </a>. Journal of Algebra: 321(3), 743–757.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2009) <a href="document.php?project_id=7&member_id=11&doc_id=313"> <em>Membership of AvG for classes of finite weakly abundant semigroups</em> </a>. Periodica Mathematica Hungarica: 59(1), 9-36.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2008) <a href="document.php?project_id=7&member_id=11&doc_id=300"> <em>Fundamental semigroups having a band of idempotents</em> </a>. Semigroup Forum: 77, 279-299.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Maria B. Szendrei (2007) <a href="document.php?project_id=7&member_id=11&doc_id=260"> <em>Almost factorizable weakly ample semigroups</em> </a>. Communications in Algebra: 35 (11), 3503-3523.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Szendrei, Maria B. (2007) <a href="document.php?project_id=7&member_id=11&doc_id=265"> <em>Even covers of left ample semigroups</em> </a>. Semigroup Forum: 74(2), 293-305.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, J.B.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2006) <a href="document.php?project_id=7&member_id=11&doc_id=221"> <em>Proper covers of ample monoids</em> </a>. Proc. Edinb. Math. Soc.: 49, 277-289.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Pin, J.-E.; Sezinando, Helena (2006) <a href="document.php?project_id=7&member_id=11&doc_id=118"> <em>Presentations of the Schützenberger product of n groups</em> </a>. Communications in Algebra: 34 (4), 1213-1235.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2006) <a href="document.php?project_id=7&member_id=11&doc_id=222"> <em>The generalized prefix expansion of a weakly left ample semigroup</em> </a>. Semigroup Forum: 72 (3), 387-403.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John B.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2006) <a href="document.php?project_id=7&member_id=11&doc_id=166"> <em>Finite abundant semigroups in which the idempotents form a subsemigroup</em> </a>. Journal of Algebra: 295, 303-313.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2005) <a href="document.php?project_id=7&member_id=11&doc_id=223"> <em>Proper extensions of weakly left ample semigroups</em> </a>. Acta Math Hungarica: 109 (1-2), 33-51.</ul></li></td> </tr> <tr> <td><ul><li>Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Jesus, Manuel M. (2005) <a href="document.php?project_id=7&member_id=11&doc_id=241"> <em>Congruences on monoids of order-preserving or order-reversing transformations on a finite chain</em> </a>. Glasgow Mathematical Journal: 47, 413-424.</ul></li></td> </tr> <tr> <td><ul><li>Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Jesus, Manuel M. (2005) <a href="document.php?project_id=7&member_id=11&doc_id=239"> <em>Presentations for some monoids of partial transformations on a finite chain</em> </a>. Communications in Algebra: 33, 587-604.</ul></li></td> </tr> <tr> <td><ul><li>Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Jesus, Manuel M. (2004) <a href="document.php?project_id=7&member_id=11&doc_id=240"> <em>Presentations for Some Monoids of Injective Partial Transformations on a Finite Chain</em> </a>. Southeast Asian Bulletin of Mathematics: 28, 903-918.</ul></li></td> </tr> <tr> <td><ul><li>Auinger, K.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, V.; Steinberg, B. (2004) <a href="document.php?project_id=7&member_id=11&doc_id=114"> <em>An application of a theorem of Ash to finite proper cover</em> </a>. Studia Logica: 78, 45-57.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, V. (2003) <a href="document.php?project_id=7&member_id=11&doc_id=108"> <em>Finite proper covers in a class of finite semigroups with commuting idempotents</em> </a>. Semigroup Forum: 66, 433-454.</ul></li></td> </tr> <tr> <td><ul><li>Araújo, Isabel M.; <a href="member.php?member_id=8">Branco, Mário J. J.</a>; Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Ruskuc, N. (2001) <a href="document.php?project_id=7&member_id=11&doc_id=22"> <em>On generators and relations for unions of semigroups</em> </a>. Semigroup Forum: 63 (1), 49-62.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2001) <a href="document.php?project_id=7&member_id=11&doc_id=73"> <em>Fundamental Ehresmann Semigroups</em> </a>. Semigroup Forum: 63 (1), 11-33.</ul></li></td> </tr> <tr> <td><ul><li>Giraldes, Emília; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; McAlister, D. B. (2000) <a href="document.php?project_id=7&member_id=11&doc_id=72"> <em>On a class of lattice ordered inverse semigroups</em> </a>. J. Algebra: 230, 496-517.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (2000) <a href="document.php?project_id=7&member_id=11&doc_id=70"> <em>Graph expansions of unipotent monoids</em> </a>. Comm. Algebra: 28 (1), 447-463.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2000) <a href="document.php?project_id=7&member_id=11&doc_id=71"> <em>Primitive inverse congruences on categorical semigroups</em> </a>. Proc. Edinburgh Math. Soc.: 43, 395-413.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (1999) <a href="document.php?project_id=7&member_id=11&doc_id=68"> <em>Enlargements, semiabundancy and unipotent monoids</em> </a>. Comm. Algebra: 27 (2), 595-614.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (1999) <a href="document.php?project_id=7&member_id=11&doc_id=69"> <em>Proper weakly left ample semigroups</em> </a>. Internat. J. Algebra Comput.: 9 (6), 721-739.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Gould, Victoria (1999) <a href="document.php?project_id=7&member_id=11&doc_id=67"> <em>A Munn type representation for a class of E-semiadequate semigroups</em> </a>. J. Algebra: 218, 693-714.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Howie, John M. (1998) <a href="document.php?project_id=7&member_id=11&doc_id=65"> <em>Semigroups with zero whose idempotents form a subsemigroup</em> </a>. Proc. Royal Soc. Edinburgh: 128A, 265-281.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Szendrei, Mária B. (1998) <a href="document.php?project_id=7&member_id=11&doc_id=66"> <em>Idempotent pure extensions of inverse semigroups via quivers</em> </a>. J. Pure Applied Algebra: 127, 15-38.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Howie, John M. (1996) <a href="document.php?project_id=7&member_id=11&doc_id=64"> <em>A P-theorem for inverse semigroups with zero</em> </a>. Portugaliae Math.: 53 (3), 257-278.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Howie, John M. (1995) <a href="document.php?project_id=7&member_id=11&doc_id=63"> <em>Idempotent endomorphisms of an independence algebra of finite rank</em> </a>. Proc. Edinb. Math. Soc.: 38, 107-116.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1994) <a href="document.php?project_id=7&member_id=11&doc_id=62"> <em>Proper left type-A covers</em> </a>. Portugaliae Math.: 51 (4), 305-319.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, J.B.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1993) <a href="document.php?project_id=7&member_id=11&doc_id=216"> <em>Proper left type-A monoids revisited</em> </a>. Glasgow Math. J.: 35, 293-306.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1993) <a href="document.php?project_id=7&member_id=11&doc_id=217"> <em>A characterisation of the group congruences on a semigroup</em> </a>. Semigroup Forum: 46, 48-53.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, J.B.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1992) <a href="document.php?project_id=7&member_id=11&doc_id=213"> <em>Left proper E-dense monoids</em> </a>. J. Pure Appl. Algebra: 80, 1-27.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Howie, J.M. (1992) <a href="document.php?project_id=7&member_id=11&doc_id=214"> <em>On the ranks of certain semigroups of order-preserving transformations</em> </a>. Semigroup Forum: 45, 272-282.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1992) <a href="document.php?project_id=7&member_id=11&doc_id=215"> <em>Group congruences on eventually inverse semigroup</em> </a>. Portugal. Math.: 49 (4), 417-428.</ul></li></td> </tr> <tr> <td><ul><li>Fountain, J.B.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1990) <a href="document.php?project_id=7&member_id=11&doc_id=212"> <em>The Szendrei expansion of a semigroup</em> </a>. Mathematika: 37, 251-260.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1988) <a href="document.php?project_id=7&member_id=11&doc_id=211"> <em>Orthodox congruences on regular semigroups</em> </a>. Semigroup Forum: 37, 149-166.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Howie, J.M. (1987) <a href="document.php?project_id=7&member_id=11&doc_id=208"> <em>Nilpotents in finite symmetric inverse semigroups</em> </a>. Proc. Edinburgh Math. Soc.: 30, 383-395.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Howie, J.M. (1987) <a href="document.php?project_id=7&member_id=11&doc_id=210"> <em>On the ranks of certain finite semigroups of transformations</em> </a>. Math. Proc. Cambridge Philos. Soc.: 101, 395-403.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1986) <a href="document.php?project_id=7&member_id=11&doc_id=206"> <em>The lattice of R-unipotent congruences on a regular semigroup</em> </a>. Semigroup Forum: 33, 159-173.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1986) <a href="document.php?project_id=7&member_id=11&doc_id=207"> <em>Some results on congruences on R-unipotent semigroups</em> </a>. Semigroup Forum: 33, 175-185.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1985) <a href="document.php?project_id=7&member_id=11&doc_id=196"> <em>R-unipotent congruences on regular semigroups</em> </a>. Semigroup Forum: 31, 265-280.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1983) <a href="document.php?project_id=7&member_id=11&doc_id=195"> <em> On left quasinormal orthodox semigroups</em> </a>. Proc. Roy. Soc. Edinburgh: 95A, 59-71.</ul></li></td> </tr> <tr> <td><ul><li>Blyth, T. S.; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (1983) <a href="document.php?project_id=7&member_id=11&doc_id=194"> <em>On the compatibility of the natural order on a regular semigroup</em> </a>. Proc. Roy. Soc. Edinburgh: 94A, 79-84.</ul></li></td> </tr> <tr> <td><h4>Books</h4><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2011) <a href="document.php?project_id=7&member_id=11&doc_id=494"> <em>Anéis e Corpos - uma introdução</em> </a>. Textos de Matemática, DM-FCUL: 22.</ul></li></td> </tr> <tr> <td><h4>Edition of Books</h4><ul><li>André, Jorge M.; <a href="member.php?member_id=8">Branco, Mário J. J.</a>; Fernandes, Vítor Hugo; Fountain, John; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Meakin, John (2007) <a href="document.php?project_id=7&member_id=11&doc_id=287"> <em>Semigroups and Formal Languages, (Proceedings - International Conference on Semigroups and Languages in honour of the 65th birthday of D.B. McAlister), Lisboa, July 2005</em> </a>. World Scientific.</ul></li></td> </tr> <tr> <td><ul><li>Araújo, Isabel M.; <a href="member.php?member_id=8">Branco, Mário J. J.</a>; Fernandes, Vítor Hugo; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a> (2004) <a href="document.php?project_id=7&member_id=11&doc_id=204"> <em>Proceedings of the Workshop on Semigroups and Languages (Lisbon 2002)</em> </a>. World Scientific.</ul></li></td> </tr> <tr> <td><ul><li><a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Pin, J.-E.; Silva, P.V. (2002) <a href="document.php?project_id=7&member_id=11&doc_id=225"> <em>Semigroups, Algorithms, Automata and Languages</em> </a>. World Scientific.</ul></li></td> </tr> <tr> <td><ul><li>Almeida, Jorge; <a href="member.php?member_id=11">Gomes, Gracinda M. S.</a>; Silva, Pedro V. (1996) <a href="document.php?project_id=7&member_id=11&doc_id=100"> <em>Semigroups, Automata and Languages</em> </a>. World Scientific.</ul></li></td> </tr> <tr> <td> </td> </tr> </table> </td> </tr> <tr> <td> <h4>Seminars</h4> <table cellspacing="0"> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=2392">International Conference on Semigroups - On the occasion of the 65th birthday of Mária Szendrei (Univ. Szeged, Hungary)</a> (11/07/2018) Faculdade de Ciências da Universidade de Lisboa</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=2343">All Kinds of Mathematics Remind me of You - Conference to celebrate the 70th Anniversary of Peter J Cameron</a> (24/07/2017) Faculdade de Ciências da Universidade de Lisboa</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=2374">Algebra Workshop 2014 - 34 years of CAUL</a> (19/11/2014) Instituto para a Investigação Interdisciplinar da Universidade de Lisboa, July 21-23 July, 2014</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=759">Groups and Semigroups: Interactions and Computations</a> (25/07/2011) </td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=682">Workshop on Algebra and Logic</a> (19/06/2009) </td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=501">Almost factorizable weakly ample semigroups</a> (14/07/2007) Second International Congress in Algebras and Combinatorics, Xi'an University of Architecture and Technology, China</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=490">Some classes of factorizable semigroups</a> (12/06/2007) Universidade de Coimbra, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=502">A walk through my work with J. Fountain on classes of (one sided) abundant semigroups</a> (13/10/2006) Fountainfest "Semigroups, categories and automata", Universidade de York, Reino Unido</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=491">A class of abundant semigroups in the pseudovariety AvG</a> (01/10/2006) Universidade de Szeged, Hungria</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=366">Extensões de semigrupos</a> (16/03/2005) UNESP, São José do Rio Preto, Brasil</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=367">Semigrupos inversos - uma breve introdução</a> (08/03/2005) UNESP, São José do Rio Preto, Brasil</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=297">Extensões próprias de semigrupos fracamente amplos à esquerda</a> (20/02/2004) </td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=504">Semigroups of partial mappings</a> (01/07/2003) "Algebra and Discrete Mathematics - symmetries and ordered structures under the influence of model theory and combinatorics", Euresco Conference, Germany</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=503">Weakly left ample semigroups</a> (01/06/2003) International Meeting on Semigroup Theory and Related Topics, Universidade do Minho, Braga, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=229">Semigrupos fracamente amplos à esquerda</a> (16/05/2003) </td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=494">Coberturas de monóides fracamente amplos à esquerda</a> (11/04/2003) Universidade do Porto, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=492">Proper extensions of weakly left ample semigroups</a> (01/01/2003) Alfréd Rényi Mathematics Institute, Hungarian Sciences Academy, Hungria</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=493">Proper extensions of weakly left ample semigroups</a> (01/01/2003) Universidade de Szeged, Hungria</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=505">Ordens de reticulado naturais no monóide inverso livre</a> (01/02/2002) Encontro Nacional da Sociedade Portuguesa de Matemática, Coimbra, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=519">Linguagens, Semigrupos e Autómatos</a> (01/01/2002) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=506">Relação entre semigrupos, autómatos e linguagens</a> (01/09/2000) Encontro Nacional da Sociedade Portuguesa de Matemática, Açores, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=520">Autómatos e semigrupos - o problema da complexidade de grupo</a> (01/01/2000) Matemática Radical 2000, Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=522">Semigrupos e congruências de grupo</a> (17/12/1999) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=507">Semigrupos Categóricos</a> (01/09/1999) V Encontro dos Algebristas Portugueses, Aveiro, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=521">Primitive inverse congruences on categorical semigroups</a> (01/07/1999) 2nd International Semigroup Conference, St. Petersburgh, Rússia</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=495">Extensões de semireticulados por monóides inversos, via categorias</a> (01/01/1999) Universidade de Coimbra, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=496">On categorical semigroups</a> (01/01/1999) Universidade de St. Andrews, Reino Unido</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=523">Algumas classes de congruências em semigrupos com zero</a> (01/01/1998) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=545">Semigroups with zero whose idempotents form a subsemigroup</a> (01/01/1997) Universidade de Glasgow, Reino Unido</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=498">Idempotent pure extensions by inverse semigroups</a> (01/01/1997) Universidade de Northern Illinois, U.S.A.</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=499">Extensions of semilattices by inverse semigroups</a> (01/01/1997) Universidade de Marquette, U.S.A.</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=525">O semigrupo de Munn - o semigrupo bicíclico</a> (01/01/1996) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=524">Weakly left ample monoids and proper covers</a> (01/01/1996) Semigroups and their applications, Praga, República Checa</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=508">Algumas classes de semigrupos com zero</a> (01/01/1996) Escola de Primavera sobre Álgebra, SPM/CIM, Coimbra, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=526">E-semigroups with idempotent pure congruences</a> (01/01/1994) Colloquium on Semigroups, Szeged, Hungria</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=528">Coberturas próprias de monóides tipo-A à esquerda</a> (01/01/1992) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=527">Monóides tipo-A à esquerda próprios</a> (01/01/1992) CAUL, Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=509">A estrutura dos monóides tipo-A à esquerda próprios</a> (01/01/1992) Universidade do Porto, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=529">Sobre semigrupos E-densos e E-unitários</a> (01/01/1991) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=510">Embedding proper left type-A monoids into semidirect products</a> (01/01/1991) "Halbgruppentheorie", Oberwolfach, Alemanha</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=532">Coberturas E-densas de semigrupos E-densos e E-unitários</a> (01/01/1990) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=530">Monóides E-densos próprios</a> (01/01/1990) Jornadas Luso-Espanholas de Matemática, Évora, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=531">Semigrupos inversos livres</a> (01/01/1990) CAUL, Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=544">Extensões de grupos por semireticulados</a> (01/01/1989) Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=533">Right type-A, right proper E-dense monoids</a> (01/01/1989) Semigroups Workshop, St. Andrews, Reino Unido</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=534">Semigrupos tipo-A à direita próprios e E-densos</a> (01/01/1989) CAUL, Universidade de Lisboa, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=511">Congruências em semigrupos inversos</a> (01/01/1989) Universidade de Coimbra, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=512">Semigrupos tipo-A à direita</a> (01/01/1989) Universidade do Porto, Portugal</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=535">Orthodox congruences on regular semigroups</a> (01/01/1987) Mini-Conference on Semigroups, St. Andrews, Reino Unido</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"> <a href="seminar.php?project_id=7&member_id=11&sem_id=536">Orthodox congruences on regular semigroups</a> (01/01/1987) Colloquium on Regular Semigroups, Szeged, Hungria</td> </tr> <tr> <td> <a href="member.php?project_id=7&member_id=11&seminarsPage=2"> <img border="0" src="Styles/None/Images/Next.gif"> </a> <a href="member.php?project_id=7&member_id=11&seminarsPage=2"> <img border="0" src="Styles/None/Images/Last.gif"> </a> </td> </tr> </table> </td> </tr> <tr> <td> <h4>Conferences</h4> <table cellspacing="0"> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://caul.cii.fc.ul.pt/WS2012/" target="conference">Workshop on Semigroups 2012 (to remember John M. Howie on the occasion of his 76th birthday)</a> (23/05/2012) Instituto para a Investigação Interdisciplinar da Universidade de Lisboa, Lisboa, Portugal, 23-25/05/2012 (Organizing Committee)</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://202.200.144.17/ICAC" target="conference">The second international congress in algebras and combinatorics, dedicated to the 70 birthday of Leonid A. Bokut</a> (07/2007) Beijing, China, 6-11/07/2007 and Xi'an, China, 12-15/07/2007 </td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://maths.york.ac.uk/www/Fountainfest" target="conference">Fountainfest "Semigroups, categories and automata", a conference celebrating John Fountain's 65th birthday and his mathematical achievements</a> (12/10/2006) University of York, UK, 12-14/10/2006 (Invited Speaker)</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://www.esf.org/euresco/03/pc03101" target="conference">Algebra and Discrete Mathematics - Symmetries and Ordered Structures under the Influence of Model Theory and Combinatorics</a> (26/07/2003) Hattingen (near Essen), Germany, 26-31/07/2003 (Invited Speaker)</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://www.dms.umontreal.ca/sms/" target="conference">Structural Theory of Automata, Semigroups and Universal Algebra</a> (07/07/2003) University of Montreal, Canada, 07-18/07/2003 </td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://www.math.uminho.pt/imapst/imapst.html" target="conference">International Meeting on Semigroup Theory and Related Topics</a> (25/06/2003) University of Minho, Braga, Portugal, 25-28/06/2003 (Invited Speaker)</td> </tr> <tr> <td style="PADDING-BOTTOM: 3px"><a href="http://caul.cii.fc.ul.pt/wsl2002/" target="conference">International Workshop on Semigroups and Languages</a> (11/2002) CAUL, Lisbon, Portugal, 27-29/11/2002 (Organizing Committee)</td> </tr> <tr> <td> </td> </tr> </table> </td> </tr> </table> <br> </td> </tr> </table> </div> <div id="foot"> <div class="container"> <div class="text-center"> <b>CEMAT</b> - Center for Computational and Stochastic Mathematics </div> <div id="foot-bar"></div> <div class="text-center"> <a href="http://www.ist.utl.pt/" target="_blank">Instituto Superior Têcnico</a><br> <a href="http://www.fc.ul.pt/" target="_blank">Faculdade de Ciências</a><br> <a href="http://www.ul.pt/" target="_blank">Universidade de Lisboa</a><br> </div> </div> </div> <script src="./js/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script> <script src="./js/cemat.js"></script> </body> </html>