Yet Another New Variant of Szász–Mirakyan Operator

In this paper, we construct a new variant of the classical Szász–Mirakyan operators, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mi>n</mi></msub></semantics&...

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Main Authors: Ana Maria Acu, Gancho Tachev
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/11/2018
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author Ana Maria Acu
Gancho Tachev
author_facet Ana Maria Acu
Gancho Tachev
author_sort Ana Maria Acu
collection DOAJ
description In this paper, we construct a new variant of the classical Szász–Mirakyan operators, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mi>n</mi></msub></semantics></math></inline-formula>, which fixes the functions 1 and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>e</mi><mrow><mi>a</mi><mi>x</mi></mrow></msup><mo>,</mo><mspace width="0.166667em"></mspace><mi>x</mi><mo>≥</mo><mn>0</mn><mo>,</mo><mspace width="0.166667em"></mspace><mspace width="0.166667em"></mspace><mi>a</mi><mo>∈</mo><mi mathvariant="double-struck">R</mi></mrow></semantics></math></inline-formula>. For these operators, we provide a quantitative Voronovskaya-type result. The uniform weighted convergence of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mi>n</mi></msub></semantics></math></inline-formula> and a direct quantitative estimate are obtained. The symmetry of the properties of the classical Szász–Mirakyan operator and of the properties of the new sequence is investigated. Our results improve and extend similar ones on this topic, established in the last decade by many authors.
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spelling doaj.art-37642d2e5d1941df856ee397466ddd722023-11-23T01:43:29ZengMDPI AGSymmetry2073-89942021-10-011311201810.3390/sym13112018Yet Another New Variant of Szász–Mirakyan OperatorAna Maria Acu0Gancho Tachev1Department of Mathematics and Informatics, Lucian Blaga University of Sibiu, Str. Dr. I. Ratiu, No. 5–7, 550012 Sibiu, RomaniaDepartment of Mathematics, University of Architecture Civil Engineering and Geodesy, 1046 Sofia, BulgariaIn this paper, we construct a new variant of the classical Szász–Mirakyan operators, <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mi>n</mi></msub></semantics></math></inline-formula>, which fixes the functions 1 and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msup><mi>e</mi><mrow><mi>a</mi><mi>x</mi></mrow></msup><mo>,</mo><mspace width="0.166667em"></mspace><mi>x</mi><mo>≥</mo><mn>0</mn><mo>,</mo><mspace width="0.166667em"></mspace><mspace width="0.166667em"></mspace><mi>a</mi><mo>∈</mo><mi mathvariant="double-struck">R</mi></mrow></semantics></math></inline-formula>. For these operators, we provide a quantitative Voronovskaya-type result. The uniform weighted convergence of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>M</mi><mi>n</mi></msub></semantics></math></inline-formula> and a direct quantitative estimate are obtained. The symmetry of the properties of the classical Szász–Mirakyan operator and of the properties of the new sequence is investigated. Our results improve and extend similar ones on this topic, established in the last decade by many authors.https://www.mdpi.com/2073-8994/13/11/2018Szász–Mirakyan operatorsweighted approximationuniform convergenceexponential functions
spellingShingle Ana Maria Acu
Gancho Tachev
Yet Another New Variant of Szász–Mirakyan Operator
Symmetry
Szász–Mirakyan operators
weighted approximation
uniform convergence
exponential functions
title Yet Another New Variant of Szász–Mirakyan Operator
title_full Yet Another New Variant of Szász–Mirakyan Operator
title_fullStr Yet Another New Variant of Szász–Mirakyan Operator
title_full_unstemmed Yet Another New Variant of Szász–Mirakyan Operator
title_short Yet Another New Variant of Szász–Mirakyan Operator
title_sort yet another new variant of szasz mirakyan operator
topic Szász–Mirakyan operators
weighted approximation
uniform convergence
exponential functions
url https://www.mdpi.com/2073-8994/13/11/2018
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