Spectral sequences: computation of cohomology ring
Some examples to apply spectral sequences
Clifford algebra
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Basic notion in Clifford algebra
Life in Switzerland
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到瑞士的学习生活流水账
西交回忆录
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毕业前夕, 收拾东西之时决定将想到的东西记录下来.
Weierstrass Elliptic Function
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This post mainly covers some results about Weierstrass p function, related to Riemann surface.
Alexander Duality and Homology of Knot Complement
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Using Poincare duality on the manifolds with boudary, prove the Alexander duality on n-sphere and calculate the homology group of knot complement.
Borsuk-Ulam Theorem
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Interesting result from Allen Hatcher
Why Ph.D.
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为什么要读博士?
Line bundles and divisors
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Preparation for Riemann-Roch theorem and Serre duality
Non-orientable Poincare Duality
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Non-orientable Poincare Duality