72 citations · 1.2k across the 81 of their papers we have counts for
85 papers
Geometric construction of classes in van Daele's K-theory
Collin Mark Joseph, Ralf Meyer
We describe explicit generators for the "real" K-theory of "real" spheres in van Daele's picture. Pulling these generators back along suitable maps from tori to spheres produces a…
Inductive Limits of Noncommutative Cartan Inclusions
Ralf Meyer, Ali Imad Raad, Jonathan Taylor
We prove that an inductive limit of aperiodic noncommutative Cartan inclusions is a noncommutative Cartan inclusion whenever the connecting maps are injective, preserve normalisers…
Local cyclic homology for nonarchimedean Banach algebras
Devarshi Mukherjee, Ralf Meyer
Let V be a complete discrete valuation ring with uniformiser p. We introduce an invariant of Banach V-algebras called local cyclic homology. This invariant is related to analytic c…
Existence of groupoid models for diagrams of groupoid correspondences
Joanna Ko, Ralf Meyer
This article continues the study of diagrams in the bicategory of étale groupoid correspondences. We prove that any such diagram has a groupoid model and that the groupoid model is…
Groupoid models for diagrams of groupoid correspondences
Ralf Meyer
A diagram of groupoid correspondences is a homomorphism to the bicategory of étale groupoid correspondences. We study examples of such diagrams, including complexes of groups and s…
The bicategory of groupoid correspondences
Celso Antunes, Joanna Ko, Ralf Meyer
We define a bicategory with étale, locally compact groupoids as objects and suitable correspondences, that is, spaces with two commuting actions as arrows; the 2-arrows are injecti…