%0 Journal Article %A Marcus, Brian %A Tuncel, Selim %T Matrices of polynomials, positivity, and finite equivalence of Markov chains %J Journal of the American Mathematical Society %D 1993 %P 131-147 %V 06 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1993-1168959-X/ %R 10.1090/S0894-0347-1993-1168959-X %F 10_1090_S0894_0347_1993_1168959_X