The spectrum of a graph modified by the addition of a vertex

Citation

Rowlinson P (1992) The spectrum of a graph modified by the addition of a vertex. Publikacije Elektrotehnickog fakulteta – Serija: Matematika, (3), pp. 67-70. http://pefmath2.etf.rs/files/112/792.pdf

Abstract
A general formula is obtained for the characteristic polynomial of a graph modified by the addition of a vertex with any prescribed set of neighbours.

Keywords
spectrum of graph; characteristic polynomial

Journal
Publikacije Elektrotehnickog fakulteta – Serija: Matematika, Issue 3