In the second part of the book examines the basic boundary value problems for three-dimensional elliptic equation. In contrast to conventional methods, the solution of boundary value problems are presented in the form of a series on some of the special functions (functions of the Steklov). The interest for expansions in series of functions Steklov, which is a far-reaching generalization of the ball functions, the solutions of boundary value problems for elliptic equations becomes bigger and bigger.
First edition (in two volumes) was published in 1922, 1923.
The book may be useful for graduate students and research workers in mathematics and applied sciences. It can be used and students.