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We describe a grading switching for arbitrary non-associative algebras of prime characteristic p, aimed at producing a new grading of an algebra from a given one. This is inspired by a fundamental tool in the classification theory of…

Rings and Algebras · Mathematics 2017-08-29 Marina Avitabile , Sandro Mattarei

We introduce a generalization $G^{(\alpha)}(X)$ of the truncated logarithm $\mathcal{L}_1(X) = \sum_{k=1}^{p-1}X^k/k$ in characteristic $p$, which depends on a parameter $\alpha$. The main motivation of this study is $G^{(\alpha)}(X)$ being…

Number Theory · Mathematics 2023-02-21 Marina Avitabile , Sandro Mattarei

We consider a class of infinite-dimensional, modular, graded Lie algebras, which includes the graded Lie algebra associated to the Nottingham group with respect to its lower central series. We identify two subclasses of Nottingham Lie…

Rings and Algebras · Mathematics 2013-12-06 Marina Avitabile , Sandro Mattarei

In this article we point out interesting connections among Lah numbers, Laguerre polynomials of order negative one, and exponential polynomials. We also discuss several different expressions for the higher order derivatives of exp (1/x). A…

Number Theory · Mathematics 2016-12-12 Khristo N. Boyadzhiev

The aim of this paper is to introduce the degenerate generalized Laguerre polynomials as the degenerate version of the generalized Laguerre polynomials and to derive some properties related to those polynomials and Lah numbers, including an…

Classical Analysis and ODEs · Mathematics 2021-07-07 Taekyun Kim , Dmitry V. Dolgy , Dae san Kim , Hye Kyung Kim , Seong Ho Park

Consider the Laguerre polynomials and deform them by the introduction in the measure of an exponential singularity at zero. In [Chen Y., Its A., J. Approx. Theory 162 (2010), 270-297, arXiv:0808.3590] the authors proved that this…

Mathematical Physics · Physics 2018-07-24 Mattia Cafasso , Manuel D. de la Iglesia

We establish a correspondence between automorphisms and derivations on certain algebras of generalised power series. In particular, we describe a Lie algebra of derivations on a field $k(\!(G)\!)$ of generalised power series, exploiting our…

Rings and Algebras · Mathematics 2025-09-23 Vincent Bagayoko , Lothar Sebastian Krapp , Salma Kuhlmann , Daniel Panazzolo , Michele Serra

Inspired by the commutator and anticommutator algebras derived from algebras graded by groups, we introduce noncommutatively graded algebras. We generalize various classical graded results to the noncommutatively graded situation concerning…

Rings and Algebras · Mathematics 2017-11-01 Patrik Nystedt

In one of our former papers {\it Endomorphisms of the measure algebra of commutative hypergroups arXiv:2204.07499 we considered exponential monomials on hypergroups and higher order derivations of the corresponding measure algebra.…

Rings and Algebras · Mathematics 2022-09-20 Zywilla Fechner , Eszter Gselmann , László Székelyhidi

We introduce the new notion of epsilon-graded associative algebras which takes its root into the notion of commutation factors introduced in the context of Lie algebras. We define and study the associated notion of epsilon-derivation-based…

Mathematical Physics · Physics 2013-01-31 Axel de Goursac , Thierry Masson , Jean-Christophe Wallet

Matrix valued Laguerre polynomials are introduced via a matrix weight function involving several degrees of freedom using the matrix nature. Under suitable conditions on the parameters the matrix weight function satisfies matrix Pearson…

Classical Analysis and ODEs · Mathematics 2019-08-26 Erik Koelink , Pablo Román

We equip a family of algebras whose noncommutativity is of Lie type with a derivation based differential calculus obtained, upon suitably using both inner and outer derivations, as a reduction of a redundant calculus over the Moyal four…

Quantum Algebra · Mathematics 2018-12-26 Giuseppe Marmo , Patrizia Vitale , Alessandro Zampini

Average of exponential ${\rm Tr}_R e^X$, i.e. of a group rather than an algebra character, in Gaussian matrix model is known to be an amusing generalization of Schur polynomial, where time variables are substituted by traces of products of…

High Energy Physics - Theory · Physics 2026-04-23 Alexei Morozov , Kazumi Okuyama

We describe a new approach for classifying conjugacy classes of elementary abelian subgroups in simple algebraic groups over an algebraically closed field, and understanding the normaliser and centraliser structure of these. For toral…

Group Theory · Mathematics 2024-01-29 Jianbei An , Heiko Dietrich , Alastair J. Litterick

In the enduring, fruitful research on spectral differential equations with polynomial eigenfunctions, Koornwinder's generalized Laguerre polynomials are playing a prominent role. Being orthogonal on the positive half-line with respect to…

Classical Analysis and ODEs · Mathematics 2017-08-02 Clemens Markett

We generalize linear superalgebra to higher gradings and commutation factors, given by arbitrary abelian groups and bicharacters. Our central tool is an extension, to monoidal categories of modules, of the Nekludova-Scheunert faithful…

Rings and Algebras · Mathematics 2014-03-31 Tiffany Covolo , Jean-Philippe Michel

An extension of the Laplace transform obtained by using the Laguerre-type exponentials is first shown. Furthermore, the solution of the Blissard problem by means of the Bell polynomials, gives the possibility to associate to any numerical…

General Mathematics · Mathematics 2021-03-15 Paolo Emilio Ricci

We are concerned with the monic orthogonal polynomials with respect to a singularly perturbed Laguerre-type weight. By using the ladder operator approach, we derive a complicated system of nonlinear second-order difference equations…

Classical Analysis and ODEs · Mathematics 2023-08-21 Chao Min , Yuan Cheng , Yang Chen

In this paper we construct a large class of modules for toroidal Lie superalgebras. Toroidal Lie superalgebras are universal central extension of G tensor A where G is a basic classical Lie superalgebra and A is a Laurent polynomial ring in…

Representation Theory · Mathematics 2012-05-17 S. Eswara Rao

Expressions for the summation of a new series involving the Laguerre polynomials are obtained in terms of generalized hypergeometric functions. These results provide alternative, and in some cases simpler, expressions to those recently…

Complex Variables · Mathematics 2013-08-13 Y. S. Kim , A. K. Rathie , R. B. Paris
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