Vol. 58, No. 4, Part 2 of 2. Special Issue on Computational Economics (July-August 2010), pp. 1037-1050 (14 pages) Multiplicity of equilibria is a prevalent problem in many economic models. Often ...

where the sum runs from 0 to [n/2]. It is known that every matching polynomial has only real roots. See [1,2]. It would be interesting to find a vertex transitive graph whose matching polynomial has a ...

It is known that there exist many pairs of nonisomorphic graphs which have the same set of eigenvalues, even when counting multiplicities. Such graphs have identical characteristic polynomials (of ...