Results 31 to 40 of about 153,964 (249)

Algebraic properties of the binomial edge ideal of a complete bipartite graph [PDF]

open access: yes, 2013
Let JG denote the binomial edge ideal of a connected undirected graph on n vertices. This is the ideal generated by the binomials xiyj − xjyi, 1 ≤ i < j≤ n, in the polynomial ring S = K[x1, . . . , xn, y1, . . . , yn] where {i, j} is an edge of G.
P. Schenzel, Sohail Zafar
semanticscholar   +1 more source

Unbalanced bipartite factorizations of complete bipartite graphs [PDF]

open access: yesDiscrete Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Universal Rigidity of Complete Bipartite Graphs [PDF]

open access: yesDiscrete & Computational Geometry, 2017
DCG published ...
Connelly, Robert, Gortler, Steven J.
openaire   +2 more sources

The Bipartite-Splittance of a Bipartite Graph

open access: yesDiscussiones Mathematicae Graph Theory, 2019
A bipartite-split graph is a bipartite graph whose vertex set can be partitioned into a complete bipartite set and an independent set. The bipartite- splittance of an arbitrary bipartite graph is the minimum number of edges to be added or removed in ...
Yin Jian-Hua, Guan Jing-Xin
doaj   +1 more source

INTRINSICALLY n-LINKED COMPLETE BIPARTITE GRAPHS [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2008
We prove that every embedding of K2n+1,2n+1 into ℝ3 contains a non-split link of n components. Further, given an embedding of K2n+1,2n+1 in ℝ3, every edge of K2n+1,2n+1 is contained in a non-split n-component link in K2n+1,2n+1.
openaire   +3 more sources

Bounds for the Kirchhoff Index of Bipartite Graphs

open access: yesJournal of Applied Mathematics, 2012
A -bipartite graph is a bipartite graph such that one bipartition has m vertices and the other bipartition has n vertices. The tree dumbbell consists of the path together with a independent vertices adjacent to one pendent vertex of and b independent ...
Yujun Yang
doaj   +1 more source

Distance energy change of complete bipartite graph due to edge deletion

open access: yesLinear Algebra and its Applications, 2018
The distance matrix, distance eigenvalue, and distance energy of a connected graph have been studied intensively in the literature. We propose a new problem of studying how the distance energy changes when an edge is deleted. In this paper, we prove that
Anu Varghese, W. So, A. Vijayakumar
semanticscholar   +1 more source

Edge condition for hamiltonicity in balanced tripartite graphs [PDF]

open access: yesOpuscula Mathematica, 2009
A well-known theorem of Entringer and Schmeichel asserts that a balanced bipartite graph of order \(2n\) obtained from the complete balanced bipartite \(K_{n,n}\) by removing at most \(n-2\) edges, is bipancyclic.
Janusz Adamus
doaj   +1 more source

Topological Drawings of Complete Bipartite Graphs [PDF]

open access: yes, 2016
Topological drawings are natural representations of graphs in the plane, where vertices are represented by points, and edges by curves connecting the points. Topological drawings of complete graphs and of complete bipartite graphs have been studied extensively in the context of crossing number problems. We consider a natural class of simple topological
Cardinal, Jean, Felsner, Stefan
openaire   +2 more sources

Decomposition of Random Graphs into Complete Bipartite Graphs [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2016
We consider the problem of partitioning the edge set of a graph $G$ into the minimum number $ (G)$ of edge-disjoint complete bipartite subgraphs. We show that for a random graph $G$ in $G(n,p)$, for $p$ is a constant no greater than $1/2$, almost surely $ (G)$ is between $n- c(\ln_{1/p} n)^{3+ }$ and $n - 2\ln_{1/(1-p)} n$ for any positive constants
Chung, Fan, Peng, Xing
openaire   +2 more sources

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