Transmutation Method and Boundary-Value Problems for Singular Elliptic Equations

The main content of this text is composed from the two doctoral dissertations of V.,V.~Katrakhov (1989) and S.,M.~Sitnik (2016). Apart from a detailed review and bibliography the book contains original results of the authors. The text is concluded with brief biographic essay of Valeriy Vyacheslavovich Katrakhov and a detailed bibliography.