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Funct. Anal. Optim.</a> <a href="/?q=in%3A496241" title="Articles in this Issue">44, No. 6, 529-544 (2023)</a>. </div> <div class="abstract">Summary: In this manuscript, we propose a Pólya distribution-based generalization of \(\lambda\)-Bernstein operators. We establish some fundamental results for convergence as well as order of approximation of the proposed operators. We present theoretical result and graph to demonstrate the proposed operator&rsquo;s intriguing ability to interpolate at the interval&rsquo;s end points. In order to illustrate the convergence of proposed operators as well as the effect of changing the parameter &ldquo;\(\mu\),&rdquo; we provide a variety of results and graphs as our paper&rsquo;s conclusion.</div> <div class="clear"></div> <div class="classification"> <h3>MSC:</h3> <table><tr> <td> <a class="mono" href="/classification/?q=cc%3A41A25" title="MSC2020">41A25</a> </td> <td class="space"> Rate of convergence, degree of approximation </td> </tr><tr> <td> <a class="mono" href="/classification/?q=cc%3A41A36" title="MSC2020">41A36</a> </td> <td class="space"> Approximation by positive operators </td> </tr></table> </div><div class="keywords"> <h3>Keywords:</h3><a href="/?q=ut%3A%5C%28%5Clambda%5C%29-Bernstein+operators">\(\lambda\)-Bernstein operators</a>; <a href="/?q=ut%3ALipschitz+continuous+functions">Lipschitz continuous functions</a>; <a href="/?q=ut%3AP%C3%B3lya-Eggenberger+distribution">Pólya-Eggenberger distribution</a></div> <!-- Modal used to show zbmath metadata in different output formats--> <div class="modal fade" id="metadataModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button> <h4 class="modal-title" id="myModalLabel">Cite</h4> </div> <div class="modal-body"> <div class="form-group"> <label for="select-output" class="control-label">Format</label> <select id="select-output" class="form-control" aria-label="Select Metadata format"></select> </div> <div class="form-group"> <label for="metadataText" class="control-label">Result</label> <textarea class="form-control" id="metadataText" rows="10" style="min-width: 100%;max-width: 100%"></textarea> </div> <div id="metadata-alert" class="alert alert-danger" role="alert" style="display: none;"> <!-- alert for connection errors etc --> </div> </div> <div class="modal-footer"> <button type="button" class="btn btn-primary" onclick="copyMetadata()">Copy to clipboard</button> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> </div> </div> </div> </div> <div class="functions clearfix"> <div class="function"> <!-- Button trigger metadata modal --> <a type="button" class="btn btn-default btn-xs pdf" data-toggle="modal" data-target="#metadataModal" data-itemtype="Zbl" data-itemname="Zbl 1528.41037" data-ciurl="/ci/07683279" data-biburl="/bibtex/07683279.bib" data-amsurl="/amsrefs/07683279.bib" data-xmlurl="/xml/07683279.xml" > Cite </a> <a class="btn btn-default btn-xs pdf" data-container="body" type="button" href="/pdf/07683279.pdf" title="Zbl 1528.41037 as PDF">Review PDF</a> </div> <div class="fulltexts"> <span class="fulltext">Full Text:</span> <a class="btn btn-default btn-xs" type="button" href="https://doi.org/10.1080/01630563.2023.2185896" aria-label="DOI for “\(\lambda\)-Bernstein operators based on Pólya distribution”" title="10.1080/01630563.2023.2185896">DOI</a> </div> <div class="sfx" style="float: right;"> </div> </div> <div class="references"> <h3>References:</h3> <table><tr> <td>[1]</td> <td class="space">Eggenberger, F.; Pólya, G., Uber die Statistik verkerter Vorgänge, Z. Angew. Math. Mech, 1, 279-289 (1923) &middot; <a href="/49.0382.01" class="nowrap">JFM 49.0382.01</a>&nbsp;&middot; <a href="https://doi.org/10.1002/zamm.19230030407" class="nowrap">doi:10.1002/zamm.19230030407</a></td> </tr><tr> <td>[2]</td> <td class="space">Stancu, D. D., Approximation of functions by a new class of linear polynomial operators, Rev. Roumaine Math. Pures Appl, 13, 1173-1194 (1968) &middot; <a href="/0167.05001" class="nowrap">Zbl 0167.05001</a></td> </tr><tr> <td>[3]</td> <td class="space">Bernstein, S. N., Démonstration du théoréme de weierstrass fondée sur le calcul de probabilités, Commun. Sco. Math. Charkov, 13, 2, 1-2 (1912) &middot; <a href="/43.0301.03" class="nowrap">JFM 43.0301.03</a></td> </tr><tr> <td>[4]</td> <td class="space">Johnson, N. L.; Kotz, S., Discrete Distributions (1969), Boston: Houghton-Mifflin, Boston &middot; <a href="/0292.62009" class="nowrap">Zbl 0292.62009</a></td> </tr><tr> <td>[5]</td> <td class="space">Stancu, D. D., Two classes of positive linear operators, Anal. Univ. Timişoara, Ser. Matem, 8, 213-220 (1970) &middot; <a href="/0276.41009" class="nowrap">Zbl 0276.41009</a></td> </tr><tr> <td>[6]</td> <td class="space">Baskakov, V. A., An instance of a sequence of linear positive operators in the space of continuous functions, Dokl. Akad. Nauk, 113, 249-251 (1957) &middot; <a href="/0080.05201" class="nowrap">Zbl 0080.05201</a></td> </tr><tr> <td>[7]</td> <td class="space">Razi, Q., Approximation of a function by Kantorovich type operators, Mat. Vesnik, 41, 3, 183-192 (1989) &middot; <a href="/0718.41027" class="nowrap">Zbl 0718.41027</a></td> </tr><tr> <td>[8]</td> <td class="space">Büyükyazici, İ., Approximation by Stancu-Chlodowsky polynomials, Comput. Math. Appl, 59, 1, 274-282 (2010) &middot; <a href="/1189.41003" class="nowrap">Zbl 1189.41003</a>&nbsp;&middot; <a href="https://doi.org/10.1016/j.camwa.2009.07.054" class="nowrap">doi:10.1016/j.camwa.2009.07.054</a></td> </tr><tr> <td>[9]</td> <td class="space">Agrawal, P. N.; Ispir, N.; Kajla, A., Approximation properties of Bézier-summation-integral type operators based on Polya-Bernstein functions, Appl. Math. Comput, 259, 533-539 (2015) &middot; <a href="/1390.41018" class="nowrap">Zbl 1390.41018</a>&nbsp;&middot; <a href="https://doi.org/10.1016/j.amc.2015.03.014" class="nowrap">doi:10.1016/j.amc.2015.03.014</a></td> </tr><tr> <td>[10]</td> <td class="space">Deo, N.; Dhamija, M.; Miclǎuş, D., Stancu-Kantorovich operators based on inverse Pólya-Eggenberger distribution, Appl. Math. Comput, 273, 1, 281-289 (2016) &middot; <a href="/1410.41031" class="nowrap">Zbl 1410.41031</a>&nbsp;&middot; <a href="https://doi.org/10.1016/j.amc.2015.10.008" class="nowrap">doi:10.1016/j.amc.2015.10.008</a></td> </tr><tr> <td>[11]</td> <td class="space">Aral, A.; Gupta, V., Direct estimates for Lupas-Durrmeyer operators, Filomat, 30, 1, 191-199 (2016) &middot; <a href="/1474.41022" class="nowrap">Zbl 1474.41022</a>&nbsp;&middot; <a href="https://doi.org/10.2298/FIL1601191A" class="nowrap">doi:10.2298/FIL1601191A</a></td> </tr><tr> <td>[12]</td> <td class="space">Cárdenas-Morales, D.; Gupta, V., Two families of Bernstein-Durrmeyer type operators, Appl. Math. Comput, 248, 342-353 (2014) &middot; <a href="/1338.41013" class="nowrap">Zbl 1338.41013</a>&nbsp;&middot; <a href="https://doi.org/10.1016/j.amc.2014.09.094" class="nowrap">doi:10.1016/j.amc.2014.09.094</a></td> </tr><tr> <td>[13]</td> <td class="space">Dhamija, M.; Deo, N., Jain-Durrmeyer operators associated with the inverse Pólya-Eggenberger distribution, Appl. Math. Comput, 286, 15-22 (2016) &middot; <a href="/1410.41009" class="nowrap">Zbl 1410.41009</a>&nbsp;&middot; <a href="https://doi.org/10.1016/j.amc.2016.03.015" class="nowrap">doi:10.1016/j.amc.2016.03.015</a></td> </tr><tr> <td>[14]</td> <td class="space">Dhamija, M.; Deo, N., Approximation by generalized positive linear Kantorovich operators, Filomat, 31, 14, 4353-4368 (2017) &middot; <a href="/1499.41056" class="nowrap">Zbl 1499.41056</a>&nbsp;&middot; <a href="https://doi.org/10.2298/FIL1714353D" class="nowrap">doi:10.2298/FIL1714353D</a></td> </tr><tr> <td>[15]</td> <td class="space">Dhamija, M.; Deo, N.; Pratap, R.; Acu, A. M., Generalized Durrmeyer operators based on inverse Pólya-Eggenberger distribution, Afr. Mat, 33, 1, 1-13 (2022) &middot; <a href="/1499.41057" class="nowrap">Zbl 1499.41057</a>&nbsp;&middot; <a href="https://doi.org/10.1007/s13370-021-00949-8" class="nowrap">doi:10.1007/s13370-021-00949-8</a></td> </tr><tr> <td>[16]</td> <td class="space">Deshwal, S.; Agrawal, P. N.; Araci, S., Modified Stancu operators based on inverse Pólya-Eggenberger distribution, J. Inequal. Appl, 2017, 1, 57 (2017) &middot; <a href="/1359.41012" class="nowrap">Zbl 1359.41012</a>&nbsp;&middot; <a href="https://doi.org/10.1186/s13660-017-1328-9" class="nowrap">doi:10.1186/s13660-017-1328-9</a></td> </tr><tr> <td>[17]</td> <td class="space">Cai, Q. B.; Lian, B. Y.; Zhou, G., Approximation properties of. λ Bernstein operators, J. Inequal. Appl, 2018, 1, 61 (2018) &middot; <a href="/1497.41013" class="nowrap">Zbl 1497.41013</a>&nbsp;&middot; <a href="https://doi.org/10.1186/s13660-018-1653-7" class="nowrap">doi:10.1186/s13660-018-1653-7</a></td> </tr><tr> <td>[18]</td> <td class="space">Acu, A. M.; Manav, N.; Sofonea, D. F., Approximation properties of \(####\)-Kantorovich operators, J. Inequal. Appl, 2018, 1, 202 (2018) &middot; <a href="/1498.41004" class="nowrap">Zbl 1498.41004</a>&nbsp;&middot; <a href="https://doi.org/10.1186/s13660-018-1795-7" class="nowrap">doi:10.1186/s13660-018-1795-7</a></td> </tr><tr> <td>[19]</td> <td class="space">Rahman, S.; Mursaleen, M.; Acu, A. M., Approximation properties of \(####\)-Bernstein-Kantorovich operators with shifted knots, Math. Methods Appl. Sci, 42, 11, 4042-4053 (2019) &middot; <a href="/1426.41031" class="nowrap">Zbl 1426.41031</a>&nbsp;&middot; <a href="https://doi.org/10.1002/mma.5632" class="nowrap">doi:10.1002/mma.5632</a></td> </tr><tr> <td>[20]</td> <td class="space">Cai, Q. B., The Bézier variant of Kantorovich type \(####\)-Bernstein operators, J. Inequal. Appl, 2018, 1, 90 (2018) &middot; <a href="/1497.41012" class="nowrap">Zbl 1497.41012</a>&nbsp;&middot; <a href="https://doi.org/10.1186/s13660-018-1688-9" class="nowrap">doi:10.1186/s13660-018-1688-9</a></td> </tr><tr> <td>[21]</td> <td class="space">Cai, Q. B.; Zhou, G., Blending type approximation by GBS operators of bivariate tensor product of \(####\)-Bernstein-Kantorovich type, J. Inequal. Appl, 2018, 1, 268 (2018) &middot; <a href="/1498.41024" class="nowrap">Zbl 1498.41024</a>&nbsp;&middot; <a href="https://doi.org/10.1186/s13660-018-1862-0" class="nowrap">doi:10.1186/s13660-018-1862-0</a></td> </tr><tr> <td>[22]</td> <td class="space">Acu, A. M.; Acar, T.; Radu, V. A., Approximation by modified \(####\) operators, RACSAM, 113, 2715-2729 (2019) &middot; <a href="/1423.41028" class="nowrap">Zbl 1423.41028</a>&nbsp;&middot; <a href="https://doi.org/10.1007/s13398-019-00655-y" class="nowrap">doi:10.1007/s13398-019-00655-y</a></td> </tr><tr> <td>[23]</td> <td class="space">Braha, N. L.; Mansour, T.; Mursaleen, M.; Acar, T., Convergence of \(####\)-Bernstein operators via power series summability method, Appl. Math. Comput., 65, 125-146 (2021) &middot; <a href="/1487.40006" class="nowrap">Zbl 1487.40006</a></td> </tr><tr> <td>[24]</td> <td class="space">Kajla, A.; Acar, T., Blending type approximation by generalized Bernstein-Durrmeyer type operators, Miskolc Math. Notes, 19, 1, 319-336 (2018) &middot; <a href="/1413.41029" class="nowrap">Zbl 1413.41029</a>&nbsp;&middot; <a href="https://doi.org/10.18514/MMN.2018.2216" class="nowrap">doi:10.18514/MMN.2018.2216</a></td> </tr><tr> <td>[25]</td> <td class="space">Kajla, A.; Acar, T., A new modification of Durrmeyer type mixed hybrid operators, Carpathian J. Math, 34, 1, 47-56 (2018) &middot; <a href="/1449.41021" class="nowrap">Zbl 1449.41021</a>&nbsp;&middot; <a href="https://doi.org/10.37193/CJM.2018.01.05" class="nowrap">doi:10.37193/CJM.2018.01.05</a></td> </tr><tr> <td>[26]</td> <td class="space">Kajla, A.; Mursaleen, M.; Acar, T., Durrmeyer-type generalization of parametric Bernstein operators, Symmetry, 12, 7, 1141 (2020)&nbsp;&middot; <a href="https://doi.org/10.3390/sym12071141" class="nowrap">doi:10.3390/sym12071141</a></td> </tr><tr> <td>[27]</td> <td class="space">Ditzian, Z.; Totik, V., Moduli of Smoothness (1987), New York: Springer-Verlag, New York &middot; <a href="/0666.41001" class="nowrap">Zbl 0666.41001</a></td> </tr></table> <div class="reference_disclaimer"> This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH&nbsp;Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching. </div> </div></article> </div></div> </div> </div> <div class="clearfix"></div> </div> </div> <div id="foot"><div class="copyright"> &copy; 2025 <a target="fiz" href="https://www.fiz-karlsruhe.de/en">FIZ Karlsruhe GmbH</a> <a href="/privacy-policy/">Privacy Policy</a> <a href="/legal-notices/">Legal Notices</a> <a href="/terms-conditions/">Terms &amp; Conditions</a> <div class="info"> <ul class="nav"> <li class="mastodon"> <a href="https://mathstodon.xyz/@zbMATH" target="_blank" class="no-new-tab-icon"> <img src="/static/mastodon.png" title="zbMATH at Mathstodon (opens in new tab)" alt="Mastodon logo"> </a> </li> </ul> </div> </div> <div class="clearfix" style="height: 0px;"></div> </div> </div> <script src="https://static.zbmath.org/contrib/jquery/1.9.1/jquery.min.js"></script> <script src="https://static.zbmath.org/contrib/jquery-caret/1.5.2/jquery.caret.min.js"></script> <script src="/static/js/jquery-ui-1.10.1.custom.min.js"></script> <script src="https://static.zbmath.org/contrib/bootstrap/v3.3.7zb1/js/bootstrap.min.js"></script> <script src="https://static.zbmath.org/contrib/bootstrap-lightbox/v0.7.0/bootstrap-lightbox.min.js"></script> <script src="https://static.zbmath.org/contrib/retina/unknown/retina.js"></script> <script src="https://static.zbmath.org/contrib/bootstrap-select/v1.13.14/js/bootstrap-select.min.js"></script> <script> var SCRIPT_ROOT = ""; </script> <script src="/static/scripts.js?v=20240926"> </script> <script src="https://static.zbmath.org/contrib/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script> <script type="text/x-mathjax-config"> MathJax.Hub.Config({ "HTML-CSS": { preferredFont: "TeX", availableFonts: [ "STIX", "TeX" ], linebreaks: { automatic: true }, EqnChunk: (MathJax.Hub.Browser.isMobile ? 10 : 50) }, tex2jax: { processEscapes: true, ignoreClass: "tex2jax_ignore|dno" }, TeX: { Macros: { Aut: "\\operatorname{Aut}", Hom: "\\operatorname{Hom}" }, noUndefined: { attributes: { mathcolor: "#039", //"red", mathbackground: "white", //"#FFEEEE", mathsize: "90%" } } }, messageStyle: "none" }); </script> <script type="text/javascript"> $(document).ready(function() { $("#MathInput").stop(true, true).keyup(function() { $.ajax({ url: "/mwsq/", type: "POST", data: { query : $("#MathInput").val() }, dataType: "text" }) .done(function(xml) { $("#MathPreview").html(xml); $(window).resize(); }); }); var press = jQuery.Event("keyup"); press.ctrlKey = false; press.which = 40; $("#MathInput").trigger(press); }); </script> <div id="new_tab_icon" style="display: none">&nbsp;<span class="glyphicon glyphicon-new-window" aria-hidden="true"></span><span class="sr-only">(opens in new tab)</span></div> </body> </html>

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