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PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY
 

Summary: PROCEEDINGS OF THE

AMERICAN MATHEMATICAL SOCIETY

Volume 53, Number 2, December 1975

E Q U I V A L E N C E O F 5-DIMENSIONAL s-COBORDISMS
MARTIN SCHARLEhlANN
ABSTRACT. The classification of 5-dimensional h-cobordisms given
by Cappell, Lashof, and Shaneson i s here strengthened and extended to
s-cobordisms when the ends of the s-cobordism are smooth.
1. Introduction. An s-cobordism between compact manifolds M and M'
will b e an s-cobordism which restricts to a product cobordism between dW
and dM1. Two s-cobordisms W and W' from a compact 4-manifold to a smooth
manifold are equivalent if there are smooth S-cobordisms V and V' with d2W
= d l V , d2w1= d l v l and a homeomorphism of W u V onto W' u V ' which i s
the identity on +I = ddlW and a diffeomorphism from d2V to d 2 V 1 . Given a
smooth 4-manifold .M, let ,Mk denote the connected sum of M and k copies
of s2 x s2.
Theorem. There i s a k such that for any connected compact smooth

  

Source: Akhmedov, Azer - Department of Mathematics, University of California at Santa Barbara

 

Collections: Mathematics