The Polynomial Identities And Invariants Of N X N Matrices

This book is based on lectures delivered during an NSF-CBMS Regional Conference, held at DePaul University in July 1990, at which the author was the principal lecturer. The first part of the book is concerned with polynomial identity rings. The emphasis is on those parts of the theory related to $n\times n$ matrices, including the major structure theorems and the construction of certain polynomial identities and central polynomials for $n\times n$ matrices. The ring of generic matrices and its center is described. The author then moves on to the invariants of $n\times n$ matrices, beginning with the first and second fundamental theorems, which are used to describe the polynomial identities statisfied by $n\times n$ matrices.

One of the exceptional features of this book is the way it emphasizes the connection between polynomial identities and invariants of $n\times n$ matrices. Accessible to those with background at the level of a first-year graduate course in algebra, this book gives readers an understanding of polynomial identity rings and invariant theory, as well as an indication of problems and research in these areas.