Results 31 to 40 of about 2,908 (161)

Decomposition of Polyharmonic Functions with Respect to the Complex Dunkl Laplacian

open access: yesJournal of Inequalities and Applications, 2010
Let Ω be a G-invariant convex domain in ℂN including 0, where G is a complex Coxeter group associated with reduced root system R⊂ℝN. We consider holomorphic functions f defined in Ω which are Dunkl polyharmonic, that
Guangbin Ren, Helmuth R. Malonek
doaj   +2 more sources

Capacity and the Corresponding Heat Semigroup Characterization from Dunkl-Bounded Variation

open access: yesFractal and Fractional, 2021
In this paper, we study some important basic properties of Dunkl-bounded variation functions. In particular, we derive a way of approximating Dunkl-bounded variation functions by smooth functions and establish a version of the Gauss–Green Theorem.
Xiangling Meng, Yu Liu, Xiangyun Xie
doaj   +1 more source

The space of Dunkl monogenics associated with Z23

open access: yesNuclear Physics B, 2022
The universal Bannai–Ito algebra BI is a unital associative algebra over C generated by X,Y,Z and the relations assert that each of{X,Y}−Z,{Y,Z}−X,{Z,X}−Y commutes with X,Y,Z. Let n≥0 denote an integer.
Hau-Wen Huang
doaj   +1 more source

On a vector-valued Hopf-Dunford-Schwartz lemma [PDF]

open access: yes, 2011
In this paper, we state as a conjecture a vector-valued Hopf-Dunford-Schwartz lemma and give a partial answer to it. As an application of this powerful result, we prove some Fe fferman-Stein inequalities in the setting of Dunkl analysis where the ...
Charpentier, Stéphane, Deleaval, Luc
core   +3 more sources

On the Dunkl intertwining operator

open access: yesJournal of Mathematical Analysis and Applications, 2017
Dunkl operators are differential-difference operators parametrized by a finite reflection group and a weight function. The commutative algebra generated by these operators generalizes the algebra of standard differential operators and intertwines with this latter by the so-called intertwining operator.
openaire   +3 more sources

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

New Results on the Equivalence of K-Functionals and Modulus of Continuity of Functions Defined on the Sobolev Space Constructed by the Generalized Jacobi-Dunkl Operator

open access: yesAdvances in Mathematical Physics, 2022
In this paper, we establish some new generalized results on the equivalence of K-functionals and modulus of continuity of functions defined on the Sobolev space Lα,β2ℝ, by using the harmonic analysis related to the Jacobi-Dunkl operator Δα,β, where α≥β ...
Ali El Mfadel   +2 more
doaj   +1 more source

Dunkl kernel associated with dihedral group

open access: yes, 2015
In this paper, we pursue the investigations started in \cite{Mas-You} where the authors provide a construction of the Dunkl intertwining operator for a large subset of the set of regular multiplicity values. More precisely, we make concrete the action of
Deleaval, Luc   +2 more
core   +3 more sources

Riesz transforms for Dunkl transform [PDF]

open access: yes, 2011
In this paper we obtain the $L^p$-boundedness of Riesz transforms for Dunkl transform for all ...
Amri, Béchir, Sifi, Mohamed
core   +2 more sources

Dunkl Operators: Theory and Applications [PDF]

open access: yes, 2003
These lecture notes are intended as an introduction to the theory of rational Dunkl operators and the associated special functions, with an emphasis on positivity and asymptotics. We start with an outline of the general concepts: Dunkl operators, the intertwining operator, the Dunkl kernel and the Dunkl transform.
openaire   +2 more sources

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