The Novikov Conjecture - Geometry and Algebra (Paperback, 2005 ed.)

Manifolds are the central geometric objects in modern mathematics. An attempt to understand the nature of manifolds leads to many interesting questions. One of the most obvious questions is the following. Let M and N be manifolds: how can we decide whether M and N are ho- topy equivalent or homeomorphic or di?eomorphic (if the manifolds are smooth)? The prototype of a beautiful answer is given by the Poincar e Conjecture. If n N is S, the n-dimensional sphere, and M is an arbitrary closed manifold, then n it is easy to decide whether M is homotopy equivalent to S . Thisisthecaseif and only if M is simply connected (assumingn> 1, the case n = 1 is trivial since 1 every closed connected 1-dimensional manifold is di?eomorphic toS ) and has the n homology of S . The PoincareConjecture states that this is also su?cient for the n existenceof ahomeomorphism fromM toS . For n = 2this followsfromthewe- known classi?cation of surfaces. Forn> 4 this was proved by Smale and Newman in the 1960s, Freedman solved the case in n = 4 in 1982 and recently Perelman announced a proof for n = 3, but this proof has still to be checked thoroughly by the experts. In the smooth category it is not true that manifolds homotopy n equivalent to S are di?eomorphic. The ?rst examples were published by Milnor in 1956 and together with Kervaire he analyzed the situation systematically in the 1960s."

General

Imprint:	Birkhauser Verlag AG
Country of origin:	Switzerland
Series:	Oberwolfach Seminars, 33
Release date:	November 2004
First published:	2005
Authors:	Matthias Kreck • Wolfgang Luck
Dimensions:	254 x 178 x 15mm (L x W x T)
Format:	Paperback
Pages:	266
Edition:	2005 ed.
ISBN-13:	978-3-7643-7141-8
Categories:	Books > Science & Mathematics > Mathematics > Geometry > General
LSN:	3-7643-7141-2
Barcode:	9783764371418

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