University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Approximations of infinite groups

  Browse A-Z

Log in

University Account External (via Google)

🔐 Log In

Information on

Subscribing to talksdetails Finding a talkdetails Adding a talkdetails Disseminating talksdetails Help and Documentationdetails

ℹ️ Information

Approximations of infinite groups

Download to your calendar using vCal

If you have a question about this talk, please contact INI IT .

NPCW04 - Approximation, deformation, quasification

We discuss various (still open) questions on approximations of finitely generated groups, focusing on finite-dimensional approximations such as residual finiteness and soficity. We begin with a survey of our prior results and then introduce a new type of approximations: constraint metric approximations. We study their existence and stability. In particular, we investigate the constraint soficity. We characterize the stability of the commutator in permutations, with constraints. This answers a question of Gorenstein-Sandler-Mills (1962).

Based on joint works with Liviu Paunescu (Bucharest).

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

Note that ex-directory lists are not shown.

Other lists

Ramsden Room, St. Catharine's College, Trumpington Street, Cambridge, CB2 1RL Rutherford Seminar Room, Cavendish Laboratory Developmental Biology Seminar Series

Other talks

Optimal metric and approximation of free boundary minimal surfaces The LMC-SMC System: A New Laboratory for Galaxy Evolution, Dynamics and Dark Matter Title to be confirmed How Far Can Good Go Without God? The Limits of a Naturalistic Ethic Afternoon Break Theophilus Richmond’s The First Crossing: The Transition from Slavery to Indentureship in the Caribbean and the Case of the Black Slave on the Hesperus
 

© 2006-2025 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity