Results 71 to 80 of about 11,648,998 (193)

Mutual-visibility problems in Kneser and Johnson graphs [PDF]

open access: yes
Let $G$ be a connected graph and $\cal X \subseteq V(G)$. By definition, two vertices $u$ and $v$ are $\cal X$-visible in $G$ if there exists a shortest $u,v$-path with all internal vertices being outside of the set $\cal X$. The largest size of $\cal X$
Bujtás, Csilla   +1 more
core   +2 more sources

The Coloring of Square of Subgraphs of Kneser Graphs

open access: yes, 2007
本文所討論的圖形均為簡單圖,即頂點個數有限多個、邊的端點不一樣、邊沒有方向、以及兩個頂點之間最多只有一個邊。 Kneser圖KG(n, k)的點集為集合[N]={1,2,3,…,n}中大小為k的所有子集,兩個點有邊相連若且為若這兩個集合互斥。一個圖G的平方記為G2,圖G2是由圖G的點所生成:在圖G中相異兩點的距離不大於2的點都給個邊相連。在第二節中我們證明,當k>2時,圖KG2(2k+1, k)的著色數可以從 已知的4k+2降為3k+2。緊緻Kneser圖KG2(n, k)是Kneser圖KG(n,
陳俊佑, Chen, Jun-Yo
core  

Kneser function by the transformation of the differential boundary value problem into the integrodifferential equations

open access: yes, 2001
Some problems by the analysis of the dynamic of mechanical systems lead on the solution of nonlinear integrodifferential equations.
Hortel, Milan
core  

Hamiltonian cycles in Kneser graphs [PDF]

open access: yes, 2017
In this thesis, we will discuss existence of hamiltonian cycles in Kneser graphs: graphs K(n,k) with vertex set corresponding to k-element subsets from set of n elements, and vertices will be adjacent if and only if their corresponding k-sets are ...
Hulcová, Tereza
core  

Treewidth of the Kneser graph and the Erdős-Ko-Rado Theorem [PDF]

open access: yes, 2014
Treewidth is an important and well-known graph parameter that measures the complexity of a graph. The Kneser graph Kneser(n, k) is the graph with vertex set ([n]k), such that two vertices are adjacent if they are disjoint.
Wood, David; id_orcid, Harvey, Daniel
core   +3 more sources

Dominating sets in Kneser graphs [PDF]

open access: yes, 2007
This thesis investigates dominating sets in Kneser graphs as well as a selection of other topics related to graph domination. Dominating sets in Kneser graphs, especially those of minimum size, often correspond to interesting combinatorial incidence ...
Gorodezky, Igor
core  

Equitable coloring of Kneser graphs [PDF]

open access: yes, 2009
The Kneser graph K(n,k) is the graph whose vertices correspond to k-element subsets of set {1,2,...,n} and two vertices are adjacent if and only if they represent disjoint subsets. In this paper we study the problem of equitable coloring of Kneser graphs,
Żyliński, Paweł   +2 more
core   +1 more source

Complete Kneser Transversal.

open access: yes, 2017
Let $k,d,\lambda\ge 1$ be integers with $d\ge \lambda $. Let $m(k,d,\lambda)$ be the maximum positive integer $n$ such that every set $X$ of $n$ points (not necessarily in general position) in $\mathbb{R}^{d}$ has the property that the convex hulls of ...
Ramirez Alfonsin, Jorge
core   +1 more source

Microporous Polylactic Acid Scaffolds Enable Fluorescence-Based Perfusion Imaging of Intrinsic In Vivo Vascularization. [PDF]

open access: yesInt J Mol Sci, 2023
Koepple C   +6 more
europepmc   +1 more source

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