Providence, R.I. American Mathematical Society, 1970. First Edition in English. Octavo. Item #006453
203 pp. Volume. 28 in "Translations of Mathematical Monographs" series. The first part of the book contains and exposition of the new theory which was announced in a seies of papers by the author between 1934 and 1953; a detailed exposition has not been published previously. The second part illustrates the theory by solving a number of problems of Cebysev type which could not be handle by classical methods. A very good copy bound in red and black cloth lettered in red and black.