of the matrix equation P\*(X,,) = O,, where Pk(k) is the characteristic equation of the path-graph of length k.
A note on path-perfect graphs
β Scribed by John Frederick Fink; H.Joseph Straight
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 498 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
In this paper we explore the c:oncept of factoring a graph into non-isomorphic paths. Lel Pi denote the path of length i. We SAY that a graph G having $n(n + 1) edges is path-perfect if E( G) can be partitioned as E, UE, !J l * l U & such that the subgraph of G induced by 32i is isomorphic to Pr, for 14 bn. It is noted that the< graphs I&, K(r, 2r -1) and K(r, 2r+ ?I are path-perfect. Also some resuk are given concerning the existen* of regular path-perfect graphs.
π SIMILAR VOLUMES
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## Abstract A __perfect path double cover__ (PPDC) of a graph __G__ on __n__ vertices is a family π« of __n__ paths of __G__ such that each edge of __G__ belongs to exactly two members of π« and each vertex of __G__ occurs exactly twice as an end of a path of π«. We propose and study the conjecture th
## Abstract In the study of decompositions of graphs into paths and cycles, the following questions have arisen: Is it true that every graph __G__ has a smallest path (resp. pathβcycle) decomposition __P__ such that every odd vertex of __G__ is the endpoint of exactly one path of __P__? This note g
## Abstract A graph __G__ is domination perfect if for each induced subgraph __H__ of __G__, Ξ³(__H__) = __i__(__H__), where Ξ³ and __i__ are a graph's domination number and independent domination number, respectively. Zverovich and Zverovich [3] offered a finite forbidden induced characterization of