65 citations · 420 across the 91 of their papers we have counts for
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Characteristic 0 and p analogies, and some motivic cohomology
Manuel Blickle, Hélène Esnault, Kay Rülling
The purpose of this survey is to explain some recent results about analogies between characteristic 0 and characteristic geometry, and to discuss an infinitesimal variant of…
Gauß-Manin connection and Tannaka duality
Hélène Esnault, Phùng Hô Hai
In analogy with the étale fundamental groups, we express the Gauß-Manin connection for in Tannaka terms. One difficulty is that unlike for fundamental groups, the Tannaka gro…
On Witt vector cohomology for singular varieties
Pierre Berthelot, Spencer Bloch, Hélène Esnault
Over a perfect field of characteristic , we construct a ``Witt vector cohomology with compact supports'' for separated -schemes of finite type, extending (after tenso…
A remark on higher congruences for the number of rational points of varieties defined over a finite field
Hélène Esnault
We show that there is no simple congruence formula for the number of points of the mod p reduction of a regular model of a smooth proper variety defined over a local field with $\e…
Künneth projectors for open varieties
Spencer Bloch, Hélène Esnault
We consider correspondences on smooth quasiprojective varieties . An algebraic cycle inducing the Künneth projector onto is constructed. Assuming normal crossings at in…