By Benjamin Steinberg
This publication is meant to offer workforce illustration thought at a degree obtainable to mature undergraduate scholars and starting graduate scholars. this can be completed by means of frequently maintaining the mandatory historical past to the extent of undergraduate linear algebra, crew concept and extremely easy ring idea. Module concept and Wedderburn conception, in addition to tensor items, are intentionally kept away from. as a substitute, we take an method in keeping with discrete Fourier research. functions to the spectral concept of graphs are given to assist the scholar relish the usefulness of the topic. a couple of workouts are integrated. This booklet is meant for a 3rd/4th undergraduate path or an introductory graduate path on staff illustration conception. even if, it might even be used as a reference for staff in all components of arithmetic and information.