Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

Computer Sciences

Series

Combinatorics

Publication Year

Articles 1 - 5 of 5

Full-Text Articles in Physical Sciences and Mathematics

Properties Of Catlin’S Reduced Graphs And Supereulerian Graphs, Wei-Guo Chen, Zhi-Hong Chen, Mei Lu Sep 2015

Properties Of Catlin’S Reduced Graphs And Supereulerian Graphs, Wei-Guo Chen, Zhi-Hong Chen, Mei Lu

Scholarship and Professional Work - LAS

A graph G is called collapsible if for every even subset R ⊆ V (G), there is a spanning connected subgraph H of G such that R is the set of vertices of odd degree in H. A graph is the reduction of G if it is obtained from G by contracting all the nontrivial collapsible subgraphs. A graph is reduced if it has no nontrivial collapsible subgraphs. In this paper, we first prove a few results on the properties of reduced graphs. As an application, for 3-edge-connected graphs G of order n with d(u) + d(v) ≥ 2(n/p − …


Edge-Connectivities For Spanning Trails With Prescribed Edges, Wei-Guo Chen, Zhi-Hong Chen, Weiqi Luo Jul 2014

Edge-Connectivities For Spanning Trails With Prescribed Edges, Wei-Guo Chen, Zhi-Hong Chen, Weiqi Luo

Scholarship and Professional Work - LAS

No abstract provided.


Even Subgraphs Of A Graph, Hong-Jian Lai, Zhi-Hong Chen Jan 1999

Even Subgraphs Of A Graph, Hong-Jian Lai, Zhi-Hong Chen

Scholarship and Professional Work - LAS

No abstract provided.


Nonsupereulerian Graphs With Large Size, Paul A. Catlin, Zhi-Hong Chen Sep 1991

Nonsupereulerian Graphs With Large Size, Paul A. Catlin, Zhi-Hong Chen

Scholarship and Professional Work - LAS

No abstract provided.


The Arboricity Of The Random Graph, Paul A. Catlin, Zhi-Hong Chen Sep 1991

The Arboricity Of The Random Graph, Paul A. Catlin, Zhi-Hong Chen

Scholarship and Professional Work - LAS

No abstract provided.