Sbornik: Mathematics is the English edition of the Russian monthly journal Matematicheskii Sbornik. This is the oldest Russian mathematical journal, in publication since 1866. Since the beginning of 1995 Sbornik: Mathematics has been published in London jointly by the London Mathematical Society, Turpion Ltd, and the Russian Academy of Sciences. Sbornik: Mathematics is published bimonthly, each issue being made up of two issues of Matematicheskii Sbornik translated into English. The journal publishes research papers keeping pace with modern trends in contemporary mathematics. The journal has always maintained the highest scientific levels in a wide area of mathematics with special attention to current developments in: Mathematical Analysis, Ordinary Differential Equations, Partial Differential Equations, Mathematical Physics, Geometry, Algebra and Functional Analysis.