Authors: David J Green Ian J Leary Title : Chern classes and extraspecial groups Status : Manuscripta Math. 88 (1995), 73-84. Abstract: The mod-$p$ cohomology ring of the extraspecial $p$-group of exponent $p$ is studied for odd $p$. We investigate the subquotient $ch(G)$ generated by Chern classes modulo the nilradical. The subring of $ch(G)$ generated by Chern classes of one-dimensional representations was studied by Tezuka and Yagita. The subring generated by the Chern classes of the faithful irreducible representations is a polynomial algebra. We study the interplay between these two families of generators, and obtain some relations between them. 1991 Mathematics Subject Classification: 20J06