It takes the average reader 2 hours and 20 minutes to read Smoothings of Piecewise Linear Manifolds. (AM-80), Volume 80 by Morris W. Hirsch
Assuming a reading speed of 250 words per minute. Learn more
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.
Smoothings of Piecewise Linear Manifolds. (AM-80), Volume 80 by Morris W. Hirsch is 140 pages long, and a total of 35,000 words.
This makes it 47% the length of the average book. It also has 43% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 3 hours and 11 minutes to read Smoothings of Piecewise Linear Manifolds. (AM-80), Volume 80 aloud.
Smoothings of Piecewise Linear Manifolds. (AM-80), Volume 80 is suitable for students ages 10 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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