Fourier Series mathematics must have played a

mathematics must have played a major role

Why some animals are phosphorescent

Martin Luther

with her merry doings and misadventures

Fourier Series mathematics must have played aRichard A. Silverman's series of translations of outstanding Russian textbooks and monographs is well known to people in the fields of mathematics, physics, and engineering. The present book is another excellent text from this series, a valuable addition to the English language literature on Fourier series. This edition is organized into nine well defined chapters: Trigonometric Fourier Series, Orthogonal Systems, Convergence of Trigonometric Fourier