نتایج جستجو برای: almost e regular spaces

تعداد نتایج: 1428484  

Journal: :J. Comb. Theory, Ser. A 2012
Sebastian M. Cioaba Kijung Kim Jacobus H. Koolen

In this paper, we study a conjecture of Andries E. Brouwer from 1996 regarding the minimum number of vertices of a strongly regular graph whose removal disconnects the graph into non-singleton components. We show that strongly regular graphs constructed from copolar spaces and from the more general spaces called ∆-spaces are counterexamples to Brouwer’s Conjecture. Using J.I. Hall’s characteriz...

Journal: :Proceedings of the American Mathematical Society 1963

Journal: :Indagationes Mathematicae (Proceedings) 1976

In this paper, the notion of almost S^{*}-compactness in L-topologicalspaces is introduced following Shi’s definition of S^{*}-compactness. The propertiesof this notion are studied and the relationship between it and otherdefinitions of almost compactness are discussed. Several characterizations ofalmost S^{*}-compactness are also presented.

Journal: :Colloquium Mathematicum 1994

Journal: :Arkiv för matematik 2004

Journal: :J. Comb. Theory, Ser. A 2011
Cristina Dalfó Edwin R. van Dam Miguel Angel Fiol Ernest Garriga B. L. Gorissen

Distance-regular graphs have been a key concept in Algebraic Combinatorics and have given place to several generalizations, such as association schemes. Motivated by spectral and other algebraic characterizations of distance-regular graphs, we study ‘almost distance-regular graphs’. We use this name informally for graphs that share some regularity properties that are related to distance in the ...

Journal: :journal of linear and topological algebra (jlta) 0
a zivari-kazempour department of mathematics, university of ayatollah borujerdi, borujerd, iran

let $mathcal{a}$ be a banach algebra with bai and $e$ be an introverted subspace of $mathcal{a'}$.in this paper we study the quotient arens regularity of $mathcal{a}$ with respect to $e$ and prove that the group algebra $l^1(g)$ for a locally compact group $g$, is quotient arens regular with respect to certain introverted subspace $e$ of $l^infty(g)$.some related result are given as well.

Journal: :Journal of Graph Theory 1985
Jin Akiyama Mikio Kano

For integers a and b, 0 ≤ a ≤ b, an [a, b]-graph G satisfies a ≤ deg(x,G) ≤ b for every vertex x of G, and an [a, b]-factor is a spanning subgraph F such that a ≤ deg(x, F ) ≤ b for every vertex x of F . An [a, b]-factor is almost-regular if b = a+1. A graph is [a, b]-factorable if its edges can be decomposed into [a, b]-factors. When both k and t are positive integers and s is a nonnegative in...

Journal: :Communications Faculty of Sciences University of Ankara. Series A1: mathematics and statistics 2021

The purpose of this paper is to investigate properties and results the almost Hurewicz property in bitopological spaces. We characterize using $(i, j)$- regular open sets continuous surjective map.

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