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math.AT2022
Lefschetz fixed point theorems for correspondences
Loring W. Tu
The classical Lefschetz fixed point theorem states that the number of fixed points, counted with multiplicity , of a smooth map from a manifold to itself can be calc…
math.AT2022
Introduction to Sheaf Cohomology
Loring W. Tu
This article aims to introduce to the uninitiated, in just four lectures of 26 pages, the wonderful techniques of sheaf cohomology, hypercohomology, and spectral sequences.