Number Theory Seminar/ Representations in Arithmetic: Kiran Kedlaya

  • Date: 02/28/2017
  • Time: 15:30
Kiran Kedlaya, University of California, San Diego

University of British Columbia


The unreasonable effectiveness of p-adic Hodge theory


As its name is meant to suggest, the subject of p-adic Hodge theory was historically concerned with the relationship between different cohomology theories attached to p-adic algebraic varieties.
Within p-adic Hodge theory, the concept of a perfectoid space (discussed in my PIMS lectures) arose quite naturally and has led to improvements in the subject which were in some sense "expected".


However, it also had several "unexpected" applications rather far afield. We'll survey three of these: Deligne's weight-monodromy conjecture (Scholze); Galois representations associated to torsion cohomology of arithmetic groups (Scholze, Caraiani-Scholze); and the direct summand conjecture of commutative algebra (Andre, Bhatt).

Other Information: 

Location: ESB 4127 


Speaker Webpage


This event is part of the PIMS Focus Group on Representations in Arithmetic.



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