**Journal overview:** This electronic-only journal publishes research announcements of significant advances in all
branches of mathematics and short complete papers of original research (up to about 15 journal pages). Both research
announcements and short papers should be designed to communicate their contents to a broad
mathematical audience and should meet high standards for mathematical content and clarity.
All papers are reviewed,
and the entire Editorial Board must approve the
acceptance of any paper.

Electronic Research Announcements in Mathematical Sciences is a continuation of Electronic Research
Announcements of the AMS published by the American Mathematical Society from 1995
to the middle of 2007. The back issues of ERA-AMS are available from the
AIMS website.
**Copying and
reprinting:** Material in this journal may be reproduced by any means for
educational and scientific purposes without fee or permission with the
exception of reproduction by services that collect fees for delivery of
documents and 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 American Institute of Mathematical Sciences, P. O. Box 2604, Springfield, MO 65801, USA. Requests
can also be made by email to General@aimsciences.org .

**Publishing
cycle:** Accepted articles are posted individually as
processed. Electronic Research Announcements in Mathematical Sciences is accessible
from AIMS website.

** Indexing and archiving notes:** This journal is
indexed in Mathematical Reviews, Zentralblatt MATH,
Science Citation Index--ExpandedT, ISI Alerting Services, CompuMath
Citation Index®, and Current Contents®, Physical, Chemical
& Earth Sciences. This journal is archived in Portico.

** Subscriptions:** Electronic Research Announcements in Mathematical Sciences
is published by AIMS and is available free of charge as service to the mathematical
community.