ℓ-adic cohomology and trace formulas

Eleven lessons on adic cohomology and trace methods, with complete arguments, worked examples, exercises and solutions.

  1. ℓ-adic sheaves and their cohomology
  2. The pro-étale site and ℓ-adic complexes
  3. Frobenius morphisms and their action on cohomology
  4. Traces of perfect complexes and Lefschetz numbers
  5. Cycle classes and the Lefschetz fixed-point formula for curves
  6. The trace formula for curves
  7. The trace formula in all dimensions
  8. L-functions, rationality and the functional equation
  9. Lefschetz pencils and vanishing cycles
  10. The fundamental estimate
  11. The Riemann hypothesis over finite fields

Supporting readings and prerequisites · Sources and terms · Download the reader and editable sources

All eleven lessons are included. Each reading identifies its mathematical prerequisites and supporting proofs.

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