Volterra V. Theory of Functionals and of Integral and Integro-Differential Equations

Dover Publications, 2005. - 288 pages. 1930 edition.A general theory of the functions depending on a continuous set of values of another function, this volume is based on the author's fundamental notion of the transition from a finite number of variables to a continually infinite number. Deals primarily with integral equations, and also addresses the calculus of variations.