Results 1 to 10 of about 4,159,641 (149)

Modular invariance, tauberian theorems and microcanonical entropy [PDF]

open access: yesJournal of High Energy Physics, 2019
We analyze modular invariance drawing inspiration from tauberian theorems. Given a modular invariant partition function with a positive spectral density, we derive lower and upper bounds on the number of operators within a given energy interval. They are
Baur Mukhametzhanov, Alexander Zhiboedav
doaj   +5 more sources

A Tauberian Theorem with a Generalized One-Sided Condition [PDF]

open access: yesAbstract and Applied Analysis, 2007
We prove a Tauberian theorem to recover moderate oscillation of a real sequenceu=(un)out of Abel limitability of the sequence(Vn(1)(Δu))and some additional condition on the general control modulo of oscillatory behavior of integer order ofu=(un).
Ibrahim Çanak, Ümit Totur
doaj   +5 more sources

Sum rules & Tauberian theorems at finite temperature [PDF]

open access: yesJournal of High Energy Physics, 2023
We study CFTs at finite temperature and derive explicit sum rules for one-point functions of operators by imposing the KMS condition and we explicitly estimate one-point functions for light operators.
Enrico Marchetto   +2 more
doaj   +2 more sources

On the Euler method of summability and concerning Tauberian theorems

open access: yesCumhuriyet Science Journal, 2021
For any two regular summability methods (U) and (V), the condition under which V-limx_n=λ implies U-limx_n=λ is called a Tauberian condition and the corresponding theorem is called a Tauberian theorem.
İbrahim Çanak, Sefa Anıl Sezer
doaj   +2 more sources

ON A TAUBERIAN CONDITION FOR BOUNDED LINEAR OPERATORS [PDF]

open access: yesMathematical Proceedings of the Royal Irish Academy, 2009
We study the relation between the growth of sequences kT n k and k(n + 1)(I T)T n k for operators T 2 L(X) satisfying variants of the Ritt resolvent condition k( T) 1 k C | 1| in various subsets of {| | > 1}.
J. Malinen, O. Nevanlinna, Z. Yuan
semanticscholar   +2 more sources

Tauberian conditions for Conull spaces [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
The typical Tauberian theorem asserts that a particular summability method cannot map any divergent member of a given set of sequences into a convergent sequence. These sets of sequences are typically defined by an “order growth” or “gap” condition.
J. Connor, A. K. Snyder
doaj   +3 more sources

Tauberian conditions for a general limitable method [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
Let (un) be a sequence of real numbers, L an additive limitable method with some property, and and different spaces of sequences related to each other.
İbrahim Canak, Ümit Totur
doaj   +2 more sources

A General Tauberian Condition that Implies Euler Summability

open access: yesCanadian Mathematical Bulletin, 1994
AbstractLet V be any summability method (whether linear or conservative or not), 0 < p < 1 and s a real or complex sequence. Let Ep denote the matrix of the Euler method. A theorem is proved, giving a condition under which the V-summability of Eps will imply the Ep-summability of s. This extends, in generalized form, an earlier result of N.
M. R. Parameswaran
semanticscholar   +3 more sources

Multidimensional Tauberian theorems for vector-valued distributions [PDF]

open access: yes, 2014
We prove several Tauberian theorems for regularizing transforms of vector-valued distributions. The regularizing transform of f is given by the integral transform M-phi(f)(x, y) = (f * phi(y))(x), (x, y) is an element of R-n x R+, with kernel phi(y) (t) =
Pilipović, Stevan, Vindas Diaz, Jasson
core   +4 more sources

Tauberian theorems for (N̄, p, q, w) summable triple sequences of fuzzy numbers

open access: yesCQD Revista Eletrônica Paulista de Matemática
In this paper, we introduce the notion of weighted mean method (N̄, p, q, w) of triple sequences of fuzzy numbers and and show necessary and sufficient Tauberian conditions under which convergence in Pringsheim's sense of a triple sequence of fuzzy ...
Carlos Bernal Granados   +2 more
doaj   +2 more sources

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