collaborators

7 papers

math.FA2025

Twisted crossed products of Banach algebras

Alonso Delfín, Carla Farsi, Judith Packer

Given a locally compact group , a nondegenerate Banach algebra with a contractive approximate identity, a twisted action of on , and a family o…

math.AT2025

Twisted Bredon-Illman Cohomology is a Morita Invariant

Carla Farsi, Laura Scull, Jordan Watts

We show that the twisted Bredon-Illman cohomology defined by Mukherjee-Mukherjee applied to compact Lie group action groupoids is Morita-invariant. This cohomology uses coefficient…

math.OA2025

Continuity for the spectral propinquity of the Dirac operators associated with an analytic path of Riemannian metrics

Carla Farsi, Frederic Latremoliere

We prove that a polynomial path of Riemannian metrics on a closed spin manifold induces a continuous field in the spectral propinquity of metric spectral triples.

math.OA2024

Simplicity of -algebras of non-Hausdorff -multispinal groupoids

C. Farsi, N. S. Larsen, J. Packer +1

We study simplicity of -algebras arising from self-similar groups of -multispinal type, a generalization of the Grigorchuk case whose simplicity was first proved…

math.OA2024

Collapse in Noncommutative Geometry and Spectral Continuity

Carla Farsi, Frederic Latremoliere

If two compact quantum metric spaces are close in the metric sense, then how similar are they, as noncommutative spaces? In the classical realm of Riemannian geometry, informally,…

math.OA2024

Spectral Triples on noncommutative solenoids from the standard spectral triples on quantum tori

Carla Farsi, Frederic Latremoliere, Judith Packer

We address the natural question: as noncommutative solenoids are inductive limits of quantum tori, do the standard spectral triples on quantum tori converge to some spectral triple…

math.AT2024

Euler characteristics of linear symplectic quotients and -spaces

Carla Farsi, Hannah Mobley, Christopher Seaton

We give explicit computations of the -Euler characteristic of several families of orbit space definable translation groupoids. These include the translation groupoids associated…