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math.CO2018
Perfect weak modular product graphs
Danial Dervovic
In this paper we enumerate the necessary and sufficient conditions for the weak modular product of two simple graphs to be perfect. The weak modular product differs from the direct…
math.CO2017
Weak Modular Product of Bipartite Graphs, Bicliques and Isomorphism
Danial Dervovic, Simone Severini
A 1978 theorem of Kozen states that two graphs on vertices are isomorphic if and only if there is a clique of size in the weak modular product between the two graphs. Restr…