Article ID Journal Published Year Pages File Type
4602594 Linear Algebra and its Applications 2008 9 Pages PDF
Abstract

We consider the problem of reconstructing the characteristic polynomial of a graph from its polynomial deck, i.e. the collection of characteristic polynomials of its vertex-deleted subgraphs. Here we provide a positive answer to this problem for graphs as in the title, provided they are disconnected. Since the same problem for connected graph was already answered in positive, we have arrived at the positive answer for the entire collection of graphs under considerations.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory