Results 21 to 30 of about 454,230 (160)

On Some Inequalities in Normed Linear Spaces [PDF]

open access: yes, 2007
Upper and lower bounds for the norm of a linear combination of vectors are given. Applications in obtaining various inequalities for the quantities ||x/||x|| - y/||y|| || and ||x/||y|| - y/||x|| ||, where x and y are nonzero vectors, that are related ...
Dragomir, Sever S
core   +6 more sources

DUNKL OPERATORS FOR COMPLEX REFLECTION GROUPS [PDF]

open access: yesProceedings of the London Mathematical Society, 2003
Dunkl operators for complex reflection groups are defined in this paper. These commuting operators give rise to a parameterized family of deformations of the polynomial De Rham complex. This leads to the study of the polynomial ring as a module over the ‘rational Cherednik algebra’, and a natural contravariant form on this module.
Dunkl, C.F., Opdam, E.M.
openaire   +3 more sources

Generalized Dunkl operator [PDF]

open access: yesUfimskii Matematicheskii Zhurnal, 2014
In the paper we introduce a generalized Dunkl operator acting in the space of entire functions on C. We study problems of harmonic analysis related with this operator and show its connection with the Gelfond-Leont'ev operator of generalized differentiation.
Il'mir Irshatovich Karamov   +1 more
openaire   +1 more source

Higher order Riesz transforms for the Dunkl Ornstein-Uhlenbeck operator [PDF]

open access: yes, 2019
summary:The aim of this paper is to extend the study of Riesz transforms associated to Dunkl Ornstein-Uhlenbeck operator considered by A. Nowak, L. Roncal and K.
Nefzi, Walid
core   +1 more source

Second Hankel determinant for a subclass of analytic functions defined by S$\check{a}$l$\check{a}$gean-difference operator

open access: yesМатематичні Студії, 2022
In the present investigation, inspired by the work on Yamaguchi type class of analytic functions satisfyingthe analytic criteria $\mathfrak{Re}\{\frac{f (z)}{z}\} > 0, $ in the open unit disk $\Delta=\{z \in \mathbb{C}\colon |z|
T. Panigrahi, G. Murugusundaramoorthy
doaj   +1 more source

Semigroup and Riesz transform for the Dunkl–Schrödinger operators [PDF]

open access: yesSemigroup Forum, 2020
Let $L_k=-Δ_k+V$ be the Dunk- Schrödinger operators, where $Δ_k=\sum_{j=1}^dT_j^2$ is the Dunkl Laplace operator associated to the dunkl operators $T_j$ on $\mathbb{R}^d$ and $V$ is a nonnegative potential function. In the first part of this paper we introduce the Riesz transform $R_j= T_j L_k^{-1/2}$ as an $L^2$- bounded operator and we prove that is ...
Amri, Béchir, Hammi, Amel
openaire   +3 more sources

Supersymmetric Wigner–Dunkl quantum mechanics

open access: yesResults in Physics, 2022
Wigner–Dunkl quantum mechanics can be viewed as deformed quantum mechanics, where the commutator between canonical momentum and position operators contains in addition a reflection operator.
Shi-Hai Dong   +3 more
doaj   +1 more source

Dunkl intertwining operator for symmetric groups

open access: yes, 2021
In this note, we express explicitly the Dunkl kernel and generalized Bessel functions of type A(n-1) by the Humbert's function Phi((n))(2), with one variable specified.
De Bie, Hendrik, Lian, Pan
core   +1 more source

The Dunkl convolution operators and multipoint de la Vallee–Poussin problem

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
The Dunkl operator as an object of mathematical physics is considered, we study the kernel and the surjectivity of Dunkl convolution operators in the space of entire functions and the space of entire functions of exponential type.
Karina Raisovna Zabirova   +1 more
doaj   +1 more source

Equivalence of K-functionals and modulus of smoothness generated by a Dunkl type operator on the interval $(-1, 1)$

open access: yesComptes Rendus. Mathématique, 2023
Our aim in this paper is to show that the modulus of smoothness and the $K$-functionals constructed from the Sobolev-type space corresponding to the Dunkl operator are equivalent on the interval $(-1,1)$.
Saadi, Faouaz, Daher, Radouan
doaj   +1 more source

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