Search results with tag "Spectral sequences"

SPECTRAL SEQUENCES: FRIEND OR FOE? - Stanford University

SPECTRAL SEQUENCES: FRIEND OR FOE? RAVI VAKIL Spectral sequences are a powerful book-keeping tool for proving things involving com-plicated commutative diagrams. They were introduced by Leray in the 1940’s at the same time as he introduced sheaves. They have a …

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