Results 11 to 20 of about 527 (59)

A Multiplier Theorem for Herz‐Type Hardy Spaces Associated with the Dunkl Transform

open access: yesAbstract and Applied Analysis, Volume 2013, Issue 1, 2013., 2013
The main purpose of this paper is to establish a Hörmander multiplier theorem for Herz‐type Hardy spaces associated with the Dunkl transform.
A. Gasmi, Julian López-Gómez
wiley   +1 more source

Exponentially Convex Functions on Hypercomplex Systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2011, Issue 1, 2011., 2011
A hypercomplex system (h.c.s.) L1(Q, m) is, roughly speaking, a space which is defined by a structure measure (c(A, B, r), (A, B ∈ ℬ(Q))), such space has been studied by Berezanskii and Krein. Our main result is to define the exponentially convex functions (e.c.f.) on (h.c.s.), and we will study their properties.
Buthinah A. Bin Dehaish, Zayid Abdulhadi
wiley   +1 more source

Dunkl Translation and Uncentered Maximal Operator on the Real Line

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2007, Issue 1, 2007., 2007
We establish estimates of the Dunkl translation of the characteristic function χ[−ɛ,ɛ], ɛ > 0, and we prove that the uncentered maximal operator associated with the Dunkl operator is of weak type (1, 1). As a consequence, we obtain the Lp‐boundedness of this operator for 1 < p ≤ +∞.
Chokri Abdelkefi   +2 more
wiley   +1 more source

Generalized weighted Besov spaces on the Bessel hypergroup

open access: yesJournal of Function Spaces, Volume 4, Issue 1, Page 91-111, 2006., 2006
In this paper we study generalized weighted Besov type spaces on the Bessel‐Kingman hypergroup. We give different characterizations of these spaces in terms of generalized convolution with a kind of smooth functions and by means of generalized translation operators. Also a discrete norm is given to obtain more general properties on these spaces.
Miloud Assal   +2 more
wiley   +1 more source

Ergodic sequences of probability measures on commutative hypergroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 7, Page 335-343, 2004., 2004
We study conditions on a sequence of probability measures {μn}n on a commutative hypergroup K, which ensure that, for any representation π of K on a Hilbert space ℋπ and for any ξ ∈ ℋπ, (∫Kπx(ξ)dμn(x)) n converges to a π‐invariant member of ℋπ.
Liliana Pavel
wiley   +1 more source

Moments of probability measures on a group

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 4, Issue 1, Page 1-37, 1981., 1981
New developments and results in the theory of expectatiors and variances for random variables with range in a topological group are presented in the following order (i) Introduction (2) Basic notions (3) The three series theorem in Banach spaces (4) Moment Conditions (5) Expectations and variances (6) A general three series theorem (7) The special ...
Herbert Heyer
wiley   +1 more source

Fourier algebras of hypergroups and central algebras on compact (quantum) groups

open access: yes, 2016
This paper concerns the study of regular Fourier hypergroups through multipliers of their associated Fourier algebras. We establish hypergroup analogues of well-known characterizations of group amenability, introduce a notion of weak amenability for ...
Alaghmandan, Mahmood, Crann, Jason
core   +1 more source

Amenability notions of hypergroups and some applications to locally compact groups

open access: yes, 2016
Different notions of amenability on hypergroups and their relations are studied. Developing Leptin's theorem for discrete hypergroups, we characterize the existence of a bounded approximate identity for hypergroup Fourier algebras.
Alaghmandan, Mahmood
core   +1 more source

Weighted discrete hypergroups

open access: yes, 2016
Weighted group algebras have been studied extensively in Abstract Harmonic Analysis where complete characterizations have been found for some important properties of weighted group algebras, namely amenability and Arens regularity.
Alaghmandan, Mahmood, Samei, Ebrahim
core   +1 more source

Hypergroups and Hypergroup Algebras [PDF]

open access: yes, 2011
The survey contains a brief description of the ideas, constructions, results, and prospects of the theory of hypergroups and generalized translation operators.
Litvinov, Grigory L.
core  

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