Results 1 to 10 of about 213,490 (192)

$H$-Chromatic Symmetric Functions [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2022
We introduce $H$-chromatic symmetric functions, $X_{G}^{H}$, which use the $H$-coloring of a graph $G$ to define  a generalization of Stanley's chromatic symmetric functions. We say two graphs $G_1$ and $G_2$ are $H$-chromatically equivalent if $X_{G_1}^{H} = X_{G_2}^{H}$, and use this idea to study uniqueness results for $H$-chromatic symmetric ...
Eagles, Nancy Mae   +4 more
openaire   +3 more sources

On the Construction of Group Equivariant Non-Expansive Operators via Permutants and Symmetric Functions

open access: yesFrontiers in Artificial Intelligence, 2022
Group Equivariant Operators (GEOs) are a fundamental tool in the research on neural networks, since they make available a new kind of geometric knowledge engineering for deep learning, which can exploit symmetries in artificial intelligence and reduce ...
Francesco Conti   +7 more
doaj   +1 more source

New Inequalities and Generalizations for Symmetric Means Induced by Majorization Theory

open access: yesAxioms, 2022
In this paper, the authors study new inequalities and generalizations for symmetric means and give new proofs for some known results by applying majorization theory.
Huan-Nan Shi, Wei-Shih Du
doaj   +1 more source

Symmetric q-Bessel functions

open access: yesLe Matematiche, 1996
q analog of bessel functions, symmetric under the interchange of q and q^ −1 are introduced. The definition is based on the generating function realized as product of symmetric q-exponential functions with appropriate arguments.
Giuseppe Dattoli, Amalia Torre
doaj   +2 more sources

Quantum Symmetric Functions [PDF]

open access: yesCommunications in Algebra, 2005
We study quantum deformations of Poisson orbivarieties. Given a Poisson manifold $(\mathbb{R}^{m}, )$ we consider the Poisson orbivariety $(\mathbb{R}^{m})^{n}/S_{n}$. The Kontsevich star product on functions on $(\mathbb{R}^{m})^{n}$ induces a star product on functions on $(\mathbb{R}^{m})^{n}/S_{n}$.
Diaz, Rafael, Pariguan, Eddy
openaire   +2 more sources

Invariants in Non-Commutative Variables of the Symmetric and Hyperoctahedral Groups [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We consider the graded Hopf algebra $NCSym$ of symmetric functions with non-commutative variables, which is analogous to the algebra $Sym$ of the ordinary symmetric functions in commutative variables.
Anouk Bergeron-Brlek
doaj   +1 more source

Weakly symmetric functions on spaces of Lebesgue integrable functions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
In this work, we present the notion of a weakly symmetric function. We show that the subset of all weakly symmetric elements of an arbitrary vector space of functions is a vector space.
T.V. Vasylyshyn, V.A. Zahorodniuk
doaj   +1 more source

A Symmetric Function of Increasing Forests

open access: yesForum of Mathematics, Sigma, 2021
For an indifference graph G, we define a symmetric function of increasing spanning forests of G. We prove that this symmetric function satisfies certain linear relations, which are also satisfied by the chromatic quasisymmetric function and unicellular $\
Alex Abreu, Antonio Nigro
doaj   +1 more source

Hopf algebras and the logarithm of the S-transform in free probability ― Extended abstract [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
This document is an extended abstract of the paper `Hopf algebras and the logarithm of the S-transform in free probability' in which we introduce a Hopf algebraic approach to the study of the operation $\boxtimes$ (free multiplicative convolution) from ...
Mitja Mastnak, Alexandru Nica
doaj   +1 more source

Higher order symmetric duality for multiobjective fractional programming problems over cones [PDF]

open access: yesYugoslav Journal of Operations Research, 2022
This article studies a pair of higher order nondifferentiable symmetric fractional programming problem over cones. First, higher order cone convex function is introduced.
Kaur Arshpreet, Sharma Mahesh Kumar
doaj   +1 more source

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