Jay Cummings

activity

20142026

most citedA New Lower Bound for van der Waerden Numbers

8 citations · 16 across the 5 of their papers we have counts for

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Showing 2014Show all

2 papers · 1 filter

math.CO2014★ 3 cited

An Anti-Ramsey Problem Concerning Complete Bipartite Graphs

Stephan Cho, Jay Cummings, Colin Defant +1

We consider quadruples of positive integers $(a, b, m, n)$ with $a \leq b$ and $m \leq n$ such that any proper edge-coloring of the complete bipartite graph $K_{m, n}$ contains a rainbow…

math.CO2014

Cospectral regular graphs with and without a perfect matching

Zoltan L. Blazsik, Jay Cummings, Willem H. Haemers

For each $b \geq 5$ we construct a pair of cospectral $b$ -regular graphs, where one has a perfect matching and the other one not. This solves a research problem posed by the third…