2 papers
math.OA2026
Semi-Cosimplicial Hilbert Spaces with Isometric Coface Operators
D. Gwion Evans, Rolf Gohm, Claus Köstler
Semi-cosimplicial objects in the category of Hilbert spaces with isometries which are motivated by non-commutative probability theory, in particular by the distributional symmetry…
math.OA2015
Semi-Cosimplicial Objects and Spreadability
D. Gwion Evans, Rolf Gohm, Claus Köstler
To a semi-cosimplicial object (SCO) in a category we associate a system of partial shifts on the inductive limit. We show how to produce an SCO from an action of the infinite braid…