Author S.A. Stepanov thoroughly investigates the current state of the theory of Diophantine equations and its related methods. Discussions focus on arithmetic, algebraic-geometric, and logical aspects of the problem. Designed for students as well as researchers, the book includes over 250 excercises accompanied by hints, instructions, and references. Written in a clear manner, this text does not require readers to have special knowledge of modern methods of algebraic geometry.

Fontanka 16 takes a fresh look at the feared Russian tsarist secret police, the Okhranka, during the period of the imperial regime leading up to the Revolution of 1917. It is a fascinating account of the development of a secret police organization that was deeply rooted in tsarist Russia but provided a model for Soviet police organizations.

"Addresses contemporary developments in number theory and coding theory, originally presented as lectures at summer school held at Bilkent University, Ankara, Turkey. Includes many results in book form for the first time."