Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Yousef Alavi"'
Autor:
Bǎrbulescu, Mircea
Publikováno v:
Bulletin mathématique de la Société des Sciences Mathématiques de Roumanie, 1992 Jan 01. 36(2), 188-188.
Externí odkaz:
https://www.jstor.org/stable/43678474
Publikováno v:
فقه و حقوق خانواده, Vol 26, Iss 74, Pp 271-251 (2021)
Marriage is the foundation for family and family is the foundation on which society stands. Marriage established by the Holy Shari'a in order to make it permissible as a solution for both men and women to enjoy each other to create a matrimonial rela
Externí odkaz:
https://doaj.org/article/5877256a3dad4552a84178421161878f
Publikováno v:
Graphs and Combinatorics. 18:709-715
Let G be a (V,E) graph of order p≥2. The double vertex graph U 2 (G) is the graph whose vertex set consists of all 2-subsets of V such that two distinct vertices {x,y} and {u,v} are adjacent if and only if |{x,y}∩{u,v}|=1 and if x=u, then y and v
Publikováno v:
Journal of Graph Theory. 18:315-322
The linear vertex-arboricity ρ(G) of a graph G is defined to be the minimum number of subsets into which the vertex set of G can be partitioned such that each subset induces a linear forest. In this paper, we give the sharp upper and lower bounds fo
Publikováno v:
Discrete Mathematics. 111(1-3):3-10
A connected digraph D is highly irregular if the vertices of out-neighborhood of each vertex vϵV(D) have different out-degrees. In this paper, we investigate some problems concerning the existence of highly irregular digraphs with special properties
Publikováno v:
Discrete Mathematics. 100:229-233
A total cover of a graph G is a subset of V(G)∪E(G) which covers all elements of V(G)∪E(G). The total covering number α2(G) of a graph G is the minimum cardinality of a total cover in G. In [1], it is proven that α2(G)⩽[n2] for a connected gr
Autor:
Yousef Alavi, Po-Fang Hsieh
Publikováno v:
Trends and Developments in Ordinary Differential Equations.
Publikováno v:
Electronic Notes in Discrete Mathematics. 11:761-762
The Ninth Quadrennial International Conference on Graph Theory, Combinatorics, Algorithms and Applications was held June 4-9, 2000 at Western Michigan University. This conference has been held every four years since 1968, hosted by the Department of
Publikováno v:
Bulletin of the Australian Mathematical Society. 25:187-206
A graph G, every vertex of which has degree at least three, is randomly 3-axial if for each vertex v of G, any ordered collection of three paths in G of length one with initial vertex v can be cyclically randomly extended to produce three internally
Publikováno v:
Journal of Graph Theory. 11:235-249
A connected graph is highly irregular if each of its vertices is adjacent only to vertices with distinct degrees. In this paper we investigate several problems concerning the existence and enumeration of highly irregular graphs as well as their indep