6 papers
Strong binding numbers and factors
Guantao Chen, Mikhail Lavrov, Yuying Ma +2
Let be a simple graph. The -th neighborhood of a vertex subset , denoted , is the set of vertices that are adjacent to at least vertices in …
Bipartite graphs with the double Hall property
Guantao Chen, Mikhail Lavrov, Yuying Ma +2
The super-neighborhood of a vertex set in a graph , denoted by , is the set of vertices adjacent to at least two vertices in . We say that a bipartite graph $G=(X…
A Hall-type condition for path covers in bipartite graphs
Mikhail Lavrov, Jennifer Vandenbussche
Let be a bipartite graph with bipartition . Inspired by a hypergraph problem, we seek an upper bound on the number of disjoint paths needed to cover all the vertices of…
Planar graphs without 4-cycles and close triangles are (2,0,0)-colorable
Heather Hoskins, Runrun Liu, Jennifer Vandenbussche +1
For a set of nonnegative integers , a -coloring of a graph is a partition of into such that for every , $…
Overlap Number of Graphs
Daniel W. Cranston, Nitish Korula, Timothy D. LeSaulnier +4
An {\it overlap representation} of a graph assigns sets to vertices so that vertices are adjacent if and only if their assigned sets intersect with neither containing the other…
Proper path-factors and interval edge-coloring of (3,4)-biregular bigraphs
Armen S. Asratian, Carl Johan Casselgren, Jennifer Vandenbussche +1
An interval coloring of a graph G is a proper coloring of E(G) by positive integers such that the colors on the edges incident to any vertex are consecutive. A (3,4)-biregular bigr…