Results 21 to 30 of about 863 (70)

Tauberian class estimates for vector-valued distributions [PDF]

open access: yes, 2019
We study Tauberian properties of regularizing transforms of vector-valued tempered distributions, that is, transforms of the form $M^{\mathbf{f}}_{\varphi}(x,y)=(\mathbf{f}\ast\varphi_{y})(x)$, where the kernel $\varphi$ is a test function and $\varphi_ ...
Pilipović, Stevan, Vindas, Jasson
core   +2 more sources

Tauberian‐type theorems with application to the Stieltjes transformation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2006, Issue 1, 2006., 2006
In the first part, we define the space L′(r) and the modified Stieltjes transformation introduced by Lavoine and Misra (1979) and Marichev (1983), respectively. In the second part of the paper, we extend Tauberian‐type theorems for the distributional Stieltjes transformations to the distributional modified Stieltjes transformations.
S. B. Gaikwad, M. S. Chaudhary
wiley   +1 more source

New inversion formulas for the Krätzel transformation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 25, Issue 4, Page 253-263, 2001., 2001
We study in distributional sense by means of the kernel method an integral transform introduced by Krätzel. It is well known that the cited transform generalizes to the Laplace and Meijer transformation. Properties of analyticity, boundedness, and inversion theorems are established for the generalized transformation.
Domingo Israel Cruz-Báez   +1 more
wiley   +1 more source

Charged structure constants from modularity [PDF]

open access: yes, 2017
We derive a universal formula for the average heavy-heavy-light structure constants for 2d CFTs with non-vanishing u(1) charge. The derivation utilizes the modular properties of one-point functions on the torus.
Das, Diptarka   +2 more
core   +2 more sources

On a family of Wiener type spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 19, Issue 1, Page 57-66, 1996., 1994
Research on Wiener type spaces was initiated by N.Wiener in [15]. A number of authors worked on these spaces or some special cases of these spaces. A kind of generalization of the Wiener′s definition was given by H.Feichtinger in [2] as a Banach spaces of functions (or measures, distributions) on locally compact groups that are defined by means of the ...
R. H. Fischer   +2 more
wiley   +1 more source

Wiener Tauberian theorems for vector‐valued functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 17, Issue 3, Page 475-478, 1994., 1993
Different versions of Wiener′s Tauberian theorem are discussed for the generalized group algebra L1(G, A) (of integrable functions on a locally compact abelian group G taking values in a commutative semisimple regular Banach algebra A) using A‐valued Fourier transforms. A weak form of Wiener′s Tauberian property is introduced and it is proved that L1(G,
K. Parthasarathy, Sujatha Varma
wiley   +1 more source

Conditional limit theorems for branching processes

open access: yesInternational Journal of Stochastic Analysis, Volume 4, Issue 4, Page 263-292, 1991., 1991
Let [ξ(m), m = 0, 1, 2, …] be a branching process in which each individual reproduces independently of the others and has probability pj(j = 0, 1, 2, …) of giving rise to j descendants in the following generation. The random variable ξ(m) is the number of individuals in the mth generation. It is assumed that P{ξ(0) = 1} = 1.
Lajos Takács
wiley   +1 more source

Sojourn measures of Student and Fisher-Snedecor random fields [PDF]

open access: yes, 2014
Limit theorems for the volumes of excursion sets of weakly and strongly dependent heavy-tailed random fields are proved. Some generalizations to sojourn measures above moving levels and for cross-correlated scenarios are presented.
Leonenko, Nikolai, Olenko, Andriy
core   +2 more sources

Abelian theorems for Whittaker transforms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 10, Issue 3, Page 417-431, 1987., 1986
Initial and final value Abelian theorems for the Whittaker transform of functions and of distributions are obtained. The Abelian theorems are obtained as the complex variable of the transform approaches 0 or ∞ in absolute value inside a wedge region in the right half plane.
Richard D. Carmichael, R. S. Pathak
wiley   +1 more source

Recent developments on the Stieltjes transform of generalized functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 10, Issue 4, Page 641-670, 1987., 1986
This paper is concerned with recent developments on the Stieltjes transform of generalized functions. Sections 1 and 2 give a very brief introduction to the subject and the Stieltjes transform of ordinary functions with an emphasis to the inversion theorems.
Ram Sankar Pathak, Lokenath Debnath
wiley   +1 more source

Home - About - Disclaimer - Privacy