This book provides an introduction to the central topics and techniques in harmonic analysis. It is based on the Riemann integral and metric spaces, in lieu of ... » 

This book provides an introduction to the central topics and techniques in harmonic analysis. It is based on the Riemann integral and metric spaces, in lieu of the Lebesgue integral and abstract topology. This edition has been revised to include two new chapters on distributions and the Heisenberg Group. «