Order Structure of Good Sets in Hypercube

N. V. Shinde1, Sandhya A. Tapadia2, B. N. Waphare3
1Department of Mathematics, COEP Technological University, Pune-411005, India.
2Department of Engineering Sciences, Vishwakarma University, Pune-411048, India.
3Center for Advanced Studies in Mathematics, Department of Mathematics, Savitribai Phule Pune University, Pune-411007, India.

Abstract

A good set on \(k\) vertices is a vertex induced subgraph of the hypercube \(Q_n\) that has the maximum number of edges. The long-lasting problem of characterizing graphs that are cover graphs of lattices is NP-complete. This paper constructs and studies lattice theoretic properties of a class of lattices whose cover graphs are isomorphic to good sets.