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math.KT2008★ 2 cited
Localization over complex-analytic groupoids and conformal renormalization
Denis Perrot
We present a higher index theorem for a certain class of etale one-dimensional complex-analytic groupoids. The novelty is the use of the local anomaly formula established in a prev…
math.KT2008
Secondary invariants for Frechet algebras and quasihomomorphisms
Denis Perrot
A Frechet algebra endowed with a multiplicatively convex topology has two types of invariants: homotopy invariants (topological K-theory and periodic cyclic homology) and secondary…