Mathematics for circuits and filters

Linear operators and matrices / Cheryl B. Schrader and Michael K. Sain

Bilinear operators and matrices / Michael K. Sain and Cheryl B. Schrader

The laplace transform / John R. Deller, Jr.

Fourier series, Fourier transforms and the DFT / W. Kenneth Jenkins

z-transform / Jelena Kovačević

Wavelet transforms / P.P. Vaidyanathan and Igor Djokovic

Graph theory / Krishnaiyan Thulasiraman

Signal flow graphs / Krishnaiyan Thulasiraman.