نتایج جستجو برای: union closed sets conjecture

تعداد نتایج: 414131  

Journal: :Symmetry 2021

An antimagic labeling of a graph G is bijection f:E(G)?{1,…,|E(G)|} such that the weights w(x)=?y?xf(y) distinguish all vertices. A well-known conjecture Hartsfield and Ringel (1990) every connected other than K2 admits an labeling. For set distances D, D-antimagic f:V(G)?{1,…,|V(G)|} weight?(x)=?y?ND(x)f(y) distinct for each vertex x, where ND(x)={y?V(G)|d(x,y)?D} D-neigbourhood x. If ND(x)=r,...

Journal: :Discrete and Computational Geometry 2022

Abstract We discuss a new memory-efficient depth-first algorithm and its implementation that iterates over all elements of finite locally branched lattice. This can be applied to face lattices polyhedra various generalizations such as polyhedral complexes subdivisions manifolds, extended tight spans closed sets matroids. Its practical is very fast compared state-of-the-art implementations previ...

Journal: :Malaya Journal of Matematik 2019

Journal: :Linear & Multilinear Algebra 2021

The present work aims to exploit the interplay between algebraic properties of rings and graph-theoretic structures some associated graphs. We introduce commutatively closed graphs investigate subsets a ring with help graph theory. In particular, we compute diameter matrix Artinian semisimple algebras.

بهتاش, حمید, ملک‌پور, سیروس,

 Non-:::union::: is a complication in the management of patients who have a fracture of the tibia. The records of twenty patients who were treated by intramedullary nailing with reaming for non :::union::: of the tibia were reviewed.   The fractures had been treated initially by closed reduction and immobilization in a cast, external fixation, fixation by pins in a plaster cast and dynamic comp...

The purpose of this paper is twofold. First we derive theoretically, using appropriate transformation on x(n), the closed-form solution of the nonlinear difference equation x(n+1) = 1/(±1 + x(n)), n ∈ N_0. The form of solution of this equation, however, was first obtained in [10] but through induction principle. Then, with the solution of the above equation at hand, we prove a case ...

Journal: :journal of algorithms and computation 0
r. jamunarani research center, department of mathematics, govindammal aditanar college for women, tiruchendur-628 215, tamil nadu, india p. jeyanthi research center, department of mathematics, govindammal aditanar college for women, tiruchendur-628 215, tamil nadu, india m. velrajan research center, department of mathematics, aditanar college of arts and science,, tiruchendur - 628 216, tamil nadu, india

in this paper, we introduce λκ−closed sets and study its properties in generalized topological spaces.

Journal: :Journal of Functional Analysis 2014

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