# Moscow Mathematical Journal

The Moscow Mathematical Journal is published by the Independent University of Moscow and the department of mathematics of the Higher School of Economics.

**The electronic version.** Complete texts of papers are available for viewing by subscribers only at www.mathjournals.org/mmj/.

The journal is indexed in Mathematical Reviews, Zentralblatt Math, ISI (Science Citation Index Expanded).

**Journal Overview.** The Moscow Mathematical Journal (MMJ) is an international quarterly published (paper and electronic) by the Independent University
of Moscow and the department of mathematics of the Higher School of Economics, and distributed by the American Mathematical Society. MMJ presents highest quality research and research-expository papers in mathematics from all over the world. Its purpose is to bring together different branches of our science and to achieve the broadest possible outlook on mathematics, characteristic of the Moscow mathematical school in general and of the Independent University of Moscow in particular.

An important specific trait of the journal is that it especially encourages research-expository papers, which must contain new important results and include detailed introductions, placing the achievements in the context of other studies and explaining the motivation behind the research. The aim is to make the articles — at least the formulation of the main results and their significance — understandable to a wide mathematical audience rather than to a narrow class of specialists.

**Copying and Reprinting.** Materials in this journal may be reproduced by any means for educational and scientific purposes without fee or permission (provided that the customary acknowledgment of the source is given). This consent does not extend to other kinds of copying for general distribution, for advertising or promotional purposes, or for resale. Requests for permission for commercial use of material should be addressed to the Independent University of Moscow.