Nonarchimedean Analytic Cyclic Homology
The talk will be about my joint article with Ralf Meyer and Devarshi Mukherjee, Documenta Mathematica 25, 1353--1419.
Let $V$ be a complete discrete valuation ring with fraction field $F$ of characteristic zero and with residue field \(k\). We introduce analytic cyclic homology of complete torsion-free bornological algebras over \(V\). We prove that it is homotopy invariant, stable, invariant under certain nilpotent extensions, and satisfies excision. We use these properties to compute it for tensor products with dagger completions of Leavitt path algebras. If \(R\) is a smooth commutative $V$-algebra of relative dimension $1$, then we identify the analytic cyclic homology of its dagger completion with Berthelot's rigid cohomology of $R\otimes_{V}k$.