Results 21 to 30 of about 3,092 (219)

Constructive Tensor Field Theory [PDF]

, 2016
We provide an up-to-date review of the recent constructive program for field theories of the vector, matrix and tensor type, focusing not on the models themselves but on the mathematical tools used.Comment: arXiv admin note: text overlap with arXiv:1401 ...
Rivasseau, Vincent
core   +1 more source

Noninclusion theorems: some remarks on a paper by J. A. Fridy

International Journal of Mathematics and Mathematical Sciences, 2000
In 1997, J. A. Fridy gave conditions for noninclusion of ordinary and of absolute summability domains. In the present note, these conditions are interpreted in a natural topological context thus giving new proofs and also explaining why one of these ...
W. Beekmann
doaj   +1 more source

The Method of almost convergence with operator of the form fractional order and applications

, 2016
The purpose of this paper is twofold. First, basic concepts such as Gamma function, almost convergence, fractional order difference operator and sequence spaces are given as a survey character.
Kadak, Ugur, Kirisci, Murat
core   +1 more source

Transpose of Nörlund matrices on the domain of summability matrices

Journal of Inequalities and Applications, 2019
Let E=(En,k)n,k≥0 $E=(E_{n,k})_{n,k\geq 0}$ be an invertible summability matrix with bounded absolute row sums and column sums, and let Ep $E_{p}$ denote the domain of E in the sequence space ℓp $\ell _{p}$ (1 ...
Gholamreza Talebi
doaj   +1 more source

Weighted $\beta\gamma$-summability of fuzzy functions of order $\theta$

, 2016
The concept of weighted $\beta\gamma$ - summability of order $\theta$ in case of fuzzy functions is introduced and classified into ordinary and absolute sense. Several inclusion relations among the sets are investigated.
Ojha, Sarita, Srivastava, P. D.
core   +1 more source

Some absolutely effective product methods

International Journal of Mathematics and Mathematical Sciences, 1992
It is proved that the product method A(C,1), where (C,1) is the Cesàro arithmetic mean matrix, is totally effective under certain conditions concerning the matrix A.
H. P. Dikshit, J. A. Fridy
doaj   +1 more source

Characterizations of summability methods derived by q-Cesàro matrix

Dera Natung Government College Research Journal
The present study  mainly aims to introduce the absolute summability method  derived  from the transformation matrix  obtained by the -Cesàro matrix   and   to establish  the  necessary and sufficient conditions for and   where   In addition, by ...
Fadime Gökçe
doaj   +1 more source

A new factor theorem on absolute matrix summability method*

AIP Conference Proceedings, 2021
Abstract In this paper, we have a new matrix generalization with absolute matrix summability factor of an infinite series by using quasi-β-power increasing sequences.
openaire   +2 more sources

Constructive Matrix Theory for Higher Order Interaction

, 2019
This paper provides an extension of the constructive loop vertex expansion to stable matrix models with interactions of arbitrarily high order. We introduce a new representation for such models, then perform a forest expansion on this representation.
Krajewski, Thomas, Rivasseau, Vincent, Sazonov, Vasily   +2 more
core   +3 more sources

Necessary conditions for absolute double matrix summability factors

Periodica Mathematica Hungarica, 2011
The authors extend their own findings for absolute summability transformed series (published earlier, see [\textit{E. Savaş} and \textit{B. E. Rhoades}, Indian J. Pure Appl. Math. 33, No. 7, 1003--1009 (2002; Zbl 1015.40001)]) to bounded double series transformed by triangular matrices. Their results apply to double weighted mean matrices, specifically
Savas, Ekrem, Rhoades, B. E.
openaire   +3 more sources