An Index and Other Useful Information

This series reports new developments in mathematical research and teaching—quickly, informally and at high level. The type of material considered for publication 1.Research monographs 2.Lectures on a new field or presentations of a new angle in a classical field 3.Seminar work-outs 4.Reports of meetings, provided they are a) of exceptional interest b) devoted to a single topic Texts which are out of print but still in demand may also be considered if they fall within these categories. The timeliness of a manuscript is more than its form, which may be unfinished or tentative. Thus, in some instances, proofs may be merely outlined and results presented which have been or will later be published elsewhere. If possible, a subject index should be included. Publication of Lecture Notes is intended as a service to the international mathematical community, in that a commercial publisher, Springer-Verlag, can offer a wide distribution of documents which would otherwise have a restricted readership. Once published and copyrighted, they can be documented in the scientific literature.