On Generalized <i>t</i>-Transformation of Free Convolution

A notion of generalized (two-parameterized) <i>t</i>-transformation of free convolution, also called <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>(</mo><mi mathvariant=&qu...

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Main Authors: Ayed. R. A. Alanzi, Raouf Fakhfakh, Fatimah Alshahrani
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Symmetry
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Online Access:https://www.mdpi.com/2073-8994/16/3/372
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author Ayed. R. A. Alanzi
Raouf Fakhfakh
Fatimah Alshahrani
author_facet Ayed. R. A. Alanzi
Raouf Fakhfakh
Fatimah Alshahrani
author_sort Ayed. R. A. Alanzi
collection DOAJ
description A notion of generalized (two-parameterized) <i>t</i>-transformation of free convolution, also called <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>(</mo><mi mathvariant="bold">t</mi><mo>=</mo><mo>(</mo><mi>a</mi><mo>,</mo><mi>b</mi><mo>)</mo><mo>)</mo></mrow></semantics></math></inline-formula>-deformed free convolution, is introduced for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>a</mi><mo>∈</mo><mi mathvariant="double-struck">R</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>b</mi><mo>></mo><mn>0</mn></mrow></semantics></math></inline-formula>. In this article, some results of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free convolution are given within the theory of Cauchy-Stieltjes Kernel (CSK) families. The variance function is a fundamental concept in CSK families. An expression is provided for the variance function under <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free convolution power. In addition, through the use of the variance function, an approximation is provided for members of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free Gaussian CSK family and members of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free Poisson CSK family respectively. Furthermore, by involving the free multiplicative convolution, a new limit theorem is provided with respect to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free convolution.
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spelling doaj.art-99bfe79e253d4df3a91d557492fc2fbc2024-03-27T14:05:37ZengMDPI AGSymmetry2073-89942024-03-0116337210.3390/sym16030372On Generalized <i>t</i>-Transformation of Free ConvolutionAyed. R. A. Alanzi0Raouf Fakhfakh1Fatimah Alshahrani2Department of Mathematics, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi ArabiaDepartment of Mathematics, College of Science and Arts in Gurayat, Jouf University, Gurayat 77454, Saudi ArabiaDepartment of Mathematical Sciences, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi ArabiaA notion of generalized (two-parameterized) <i>t</i>-transformation of free convolution, also called <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>(</mo><mi mathvariant="bold">t</mi><mo>=</mo><mo>(</mo><mi>a</mi><mo>,</mo><mi>b</mi><mo>)</mo><mo>)</mo></mrow></semantics></math></inline-formula>-deformed free convolution, is introduced for <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>a</mi><mo>∈</mo><mi mathvariant="double-struck">R</mi></mrow></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>b</mi><mo>></mo><mn>0</mn></mrow></semantics></math></inline-formula>. In this article, some results of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free convolution are given within the theory of Cauchy-Stieltjes Kernel (CSK) families. The variance function is a fundamental concept in CSK families. An expression is provided for the variance function under <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free convolution power. In addition, through the use of the variance function, an approximation is provided for members of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free Gaussian CSK family and members of the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free Poisson CSK family respectively. Furthermore, by involving the free multiplicative convolution, a new limit theorem is provided with respect to <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mi mathvariant="bold">t</mi></semantics></math></inline-formula>-deformed free convolution.https://www.mdpi.com/2073-8994/16/3/372variance functionCauchy–Stieltjes transformdeformation of measures
spellingShingle Ayed. R. A. Alanzi
Raouf Fakhfakh
Fatimah Alshahrani
On Generalized <i>t</i>-Transformation of Free Convolution
Symmetry
variance function
Cauchy–Stieltjes transform
deformation of measures
title On Generalized <i>t</i>-Transformation of Free Convolution
title_full On Generalized <i>t</i>-Transformation of Free Convolution
title_fullStr On Generalized <i>t</i>-Transformation of Free Convolution
title_full_unstemmed On Generalized <i>t</i>-Transformation of Free Convolution
title_short On Generalized <i>t</i>-Transformation of Free Convolution
title_sort on generalized i t i transformation of free convolution
topic variance function
Cauchy–Stieltjes transform
deformation of measures
url https://www.mdpi.com/2073-8994/16/3/372
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AT raouffakhfakh ongeneralizedititransformationoffreeconvolution
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