H
Hong-Jian Lai
Researcher at West Virginia University
Publications - 304
Citations - 2922
Hong-Jian Lai is an academic researcher from West Virginia University. The author has contributed to research in topics: Line graph & Bound graph. The author has an hindex of 25, co-authored 274 publications receiving 2516 citations. Previous affiliations of Hong-Jian Lai include University of West Virginia & Wayne State University.
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Unified spectral hamiltonian results of balanced bipartite graphs and complementary graphs
Muhuo Liu,Yang Wu,Hong-Jian Lai +2 more
TL;DR: Using the Bondy–Chvátal closure, this work provides a unified approach to study sufficient graph eigenvalue conditions for Hamiltonian properties and sharpen several former spectral Hamiltonian results on balanced bipartite graphs and complementary graphs.
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A Note on Group Colorings and Group Structure
Hong-Jian Lai,Lucian Mazza +1 more
TL;DR: Abelian group colorings were first introduced by Jaeger et al. as mentioned in this paper as the dual concept of group connectivity of graphs, and they have been used extensively in the literature.
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The Extremal Sizes of Arc-Maximal (k, l)-Digraphs
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Strengthened Ore conditions for (s, t)-supereulerian graphs
TL;DR: In this paper , it was shown that for any real numbers α and β with 0 < α < 1, there exists a family of graphs F ( α, β ; s, t ) such that if κ ( G ) ≥ j 0 ( s , t ) and if for any nonadjacent vertices u, v, w ∈ V ( G) , d G ( u ) + d G( v + dG ( w ) > n − 3 , then G is ( s-, t ) -supereulerian if and only if
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Modulo orientations and matchings in graphs
TL;DR: For graphs with a bounded matching number, the modulo orientation problem is known to be NP-hard as mentioned in this paper , and it is known that for general planar graphs it is a known NP-complete problem.