Yan Zou

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Name	Yan Zou
Member for	3 years
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Location	Beijing, China
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Interested in algebraic topology and differential topology.

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For which $b$ it is possible that $S^n$ can have a Lorentz metric? Why?

spherical-geometry at.algebraic-topology riemannian-geometry

jan 6 12 at 2:10 Renato G Bettiol 2,070●5●12

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answer

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Definition of Pontrjagin Classes

tag-removed at.algebraic-topology differential-topology

dec 21 11 at 18:57 John Klein 7,196●19●28

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Textbook or lecture notes in topological K-Theory

List of Classifying Spaces and Covers

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at.algebraic-topology× 4
textbook-recommendation
tag-removed
spherical-geometry
riemannian-geometry
lie-groups
kt.k-theory-homology
group-actions
differential-topology
classifying-spaces

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