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Monday, October 22, 2018
4:00 PM - 5:00 PM
Linde Hall 387

Algebra and Geometry Seminar

The Monsky-Washnitz​er site
Dingxin Zhang, Mathematics Department, Harvard University,
Rigid cohomology defined by Berthelot agrees with the formal cohomology defined Monsky and Washnitzer for smooth affine varieties. Motivated by this, mimicking the convergent theory of Ogus, we define a site using weakly completed algebras. We show a certain sheaf cohomology of this site agrees with Berthelot's rigid cohomology.
For more information, please contact Mathematics Dept. by phone at 626-395-4335 or by email at mathinfo@caltech.edu.