pith. sign in

arxiv: 1207.1802 · v2 · pith:MV6VIOPYnew · submitted 2012-07-07 · 🧮 math.CO

Integral trees with given nullity

classification 🧮 math.CO
keywords integralnullitytreesgivenadjacencycalledconsisteigenvalues
0
0 comments X
read the original abstract

A graph is called integral if all eigenvalues of its adjacency matrix consist entirely of integers. We prove that for a given nullity more than 1, there are only finitely many integral trees. It is also shown that integral trees with nullity 2 and 3 are unique.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.