Reading Seminar on Étale Cohomology

Fall 2025

Supervisor: Kai-Wen Lan

Location: Vincent Hall 113

Schedule

• Baigang Chen, Sep 22, 2:30pm: Overview on Weil Conjectures (Appendix C to Hartshorne's Algebraic Geometry)
• Nels Parenteau, Sep 29, 2:30pm: Grothendieck topologies (SGA 4 1/2 Arcata, I)
• Sarbartha Bhattacharya, Oct 6, 2:30pm: The étale topology, I (SGA 4 1/2 Arcata, II)
• Sarbartha Bhattacharya, Oct 13, 2:30pm: The étale topology, II (SGA 4 1/2 Arcata, II)
• Zhaolin Li, Oct 20, 2:30pm: The cohomology of curves (SGA 4 1/2 Arcata, III)
• Nels Parenteau, Oct 27, 2:30pm: The proper base change theorem, I (SGA 4 1/2 Arcata, IV)
• Yui To Cheng, Nov 3, 2:30pm: Local acyclicity of smooth morphisms, I (SGA 4 1/2 Arcata, V)
• Nels Parenteau, Nov 10, 2:30pm: The proper base change theorem, II (SGA 4 1/2 Arcata, IV)
• Yui To Cheng, Nov 17, 2:30pm: Local acyclicity of smooth morphisms, II (SGA 4 1/2 Arcata, V)
• Jiaxi Tian, Nov 24, 2:30pm: Poincaré duality, I (SGA 4 1/2 Arcata, VI)
• Jiaxi Tian, Dec 1, 2:30pm: Poincaré duality, II (SGA 4 1/2 Arcata, VI)
• Junyi Zhai, Dec 1, 3:pm: Overview on l-adic cohomology (Katz's article in Motives, Part I)
• Yuxuan Ge, Dec 8, 2:30pm: Overview on p-adic cohomology (Illusie's article in Motives, Part I)