Printed in the original German, this highly prized, unabridged text of the complete works of the legendary mathematician includes 31 monographs, three complete lecture courses, and 15 miscellaneous papers. Major influences on Einstein, de Sitter, Dirac, and others, they include epoch-making works on Abelian functions, non-Euclidean geometry, and other mathematical topics. AUTHOR: One of the most influential mathematicians of his era, Georg Friedrich Bernhard Riemann (1826?66) made profound contributions to several areas of mathematics, including analysis, number theory, and differential geometry. His work in the field of differential geometry established the mathematics of general relativity.