Smoothings of Piecewise Linear Manifolds by Morris W Hirsch

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Summary

The intention of the authors is to examine the relationship between piecewise linear structure and differential structure: a relationship, they assert, that can be understood as a homotopy obstruction theory, and, hence, can be studied by using the traditional techniques of algebraic topology. Thus the book attacks the problem of existence and clas

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Smoothings of Piecewise Linear Manifolds by Morris W Hirsch

The intention of the authors is to examine the relationship between piecewise linear structure and differential structure: a relationship, they assert, that can be understood as a homotopy obstruction theory, and, hence, can be studied by using the traditional techniques of algebraic topology. Thus the book attacks the problem of existence and classification (up to isotopy) of differential structures compatible with a given combinatorial structure on a manifold. The problem is completely "solved" in the sense that it is reduced to standard problems of algebraic topology. The first part of the book is purely geometrical; it proves that every smoothing of the product of a manifold M and an interval is derived from an essentially unique smoothing of M. In the second part this result is used to translate the classification of smoothings into the problem of putting a linear structure on the tangent microbundle of M. This in turn is converted to the homotopy problem of classifying maps from M into a certain space PL/O. The set of equivalence classes of smoothings on M is given a natural abelian group structure.

Barry Mazur is a Harvard University mathematician who resides in Cambridge, Massachusetts, with his wife, the writer Grace Dane Mazur.

SKU Unavailable
ISBN 13 9780691081458
ISBN 10 069108145X
Title Smoothings of Piecewise Linear Manifolds
Author Morris W Hirsch
Series Annals Of Mathematics Studies
Condition Unavailable
Binding Type Paperback
Publisher Princeton University Press
Year published 1974-10-21
Number of pages 140
Cover note Book picture is for illustrative purposes only, actual binding, cover or edition may vary.