Results 11 to 20 of about 4,877 (197)

For Most Frequencies, Strong Trapping Has a Weak Effect in Frequency‐Domain Scattering

open access: yesCommunications on Pure and Applied Mathematics, Volume 74, Issue 10, Page 2025-2063, October 2021., 2021
It is well‐known that when the geometry and/or coefficients allow stable trapped rays, the outgoing solution operator of the Helmholtz equation grows exponentially through a sequence of real frequencies tending to infinity. In this paper we show that, even in the presence of the strongest possible trapping, if a set of frequencies of arbitrarily small ...
David Lafontaine   +2 more
wiley   +1 more source

Campana points of bounded height on vector group compactifications

open access: yesProceedings of the London Mathematical Society, Volume 123, Issue 1, Page 57-101, July 2021., 2021
Abstract We initiate a systematic quantitative study of subsets of rational points that are integral with respect to a weighted boundary divisor on Fano orbifolds. We call the points in these sets Campana points. Earlier work of Campana and subsequently Abramovich shows that there are several reasonable competing definitions for Campana points.
Marta Pieropan   +3 more
wiley   +1 more source

On the decoupled Markov group conjecture

open access: yesBulletin of the London Mathematical Society, Volume 53, Issue 1, Page 240-247, February 2021., 2021
Abstract The Markov group conjecture, a long‐standing open problem in the theory of Markov processes with countable state space, asserts that a strongly continuous Markov semigroup T=(Tt)t∈[0,∞) on ℓ1 has bounded generator if the operator T1 is bijective. Attempts to disprove the conjecture have often aimed at glueing together finite‐dimensional matrix
Jochen Glück
wiley   +1 more source

Sobre el Teorema Tauberiano de W. Rudin

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2012
Using W. Rudin’s method it is shown that the tauberian theorem can be generalized to several kernels other than the Poisson kernel. We also proof an inverse of the tauberian theorem, that is, an abelian theorem.
Marielos Mora
doaj   +1 more source

Distributional versions of Littlewood's Tauberian theorem [PDF]

open access: yes, 2010
We provide several general versions of Littlewood's Tauberian theorem. These versions are applicable to Laplace transforms of Schwartz distributions. We apply these Tauberian results to deduce a number of Tauberian theorems for power series where Ces\`{a}
A. E. Ingham   +27 more
core   +4 more sources

The range of once‐reinforced random walk in one dimension

open access: yesRandom Structures &Algorithms, Volume 58, Issue 1, Page 164-175, January 2021., 2021
We study once‐reinforced random walk on . For this model, we derive limit results on all moments of its range using Tauberian theory.
Peter Pfaffelhuber, Jakob Stiefel
wiley   +1 more source

An application of results by Hardy, Ramanujan and Karamata to Ackermannian functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
The Ackermann function is a fascinating and well studied paradigm for a function which eventually dominates all primitive recursive functions. By a classical result from the theory of recursive functions it is known that the Ackermann function can be
Andreas Weiermann
doaj   +2 more sources

Converse Theorems for the Cesàro Summability of Improper Integrals

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
In thispaper we prove converse theorems to obtain usual convergence of improperintegrals from Cesàro summability.
Sefa Anıl Sezer, Rahmet Savaş
doaj   +1 more source

The ridgelet transform and quasiasymptotic behavior of distributions [PDF]

open access: yes, 2015
We characterize the quasiasymptotic behavior of distributions in terms of a Tauberian theorem for ridgelet transforms.Comment: 13 ...
Kostadinova, Sanja   +3 more
core   +2 more sources

Complex Tauberian theorems for Laplace transforms with local pseudofunction boundary behavior [PDF]

open access: yes, 2019
We provide several Tauberian theorems for Laplace transforms with local pseudofunction boundary behavior. Our results generalize and improve various known versions of the Ingham-Fatou-Riesz theorem and the Wiener-Ikehara theorem.
Debruyne, Gregory, Vindas Diaz, Jasson
core   +1 more source

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