This work was patially suported by a research grant(CityU1056/01E)of Hong Kong Research Grant Council;the National Natural Science Foundation of China(Grants No.19831080,60172003);NSFSD(Z2000A02).
Let G be a bipartite graph with vertex set V(G) and edge set E(G), and let g and f be two nonnegative integer-valued functions defined on V(G) such that g(x) ≤f(x)for every vertex x of V(G). A(g,f)-coloring of G is a...
This research is supported by the National Natural Science Foundation of China(60172003) and NSF of Shandong Province(Z2000A02).
H. Wang considered the minimum degrees condition that G has largevertex-disjoint cycles in bipartite graphs. Motivated by this, we consider the small vertex-disjointcycles in bipartite graphs in this paper. We prove t...
Supported by the National Natural Science Foundation of China( 60 1 72 0 0 3) ;NSF of Shandongprovince ( Z2 0 0 0 A0 2 )
Let G be a bipartite graph and g and f be two positive integer-valued functions defined on vertex set V(G) of G such that g(x)≤f(x).In this paper,some sufficient conditions related to the connectivity and edge-connec...