65 citations · 420 across the 91 of their papers we have counts for
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math.AG2016★ 7 cited
A Lefschetz theorem for overconvergent isocrystals with Frobenius structure
Tomoyuki Abe, Hélène Esnault
We show a Lefschetz theorem for irreducible overconvergent -isocrystals on smooth varieties defined over a finite field. We derive several consequences from it.
math.AG2016
Survey on some aspects of Lefschetz theorems in algebraic geometry
Hélène Esnault
We survey classical material around Lefschetz theorems for fundamental groups, and show the relation to parts of Deligne's program in Weil II. The notes are based on some aspects o…
math.AG2016
A remark on Deligne's finiteness theorem
Hélène Esnault
Over a connected geometrically unibranch scheme of finite type over a finite field, we show finiteness of the number of irreducible $\bar \Q_\ell$-lisse sheaves, with bounded r…