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math.DG2023
The universal Euler characteristic and Burnside group for definable groupoids
Carla Farsi, Emily Proctor, Christopher Seaton
We introduce the universal Euler characteristic of orbit space definable groupoids, a class of groupoids containing cocompact proper Lie groupoids as well as translation groupoids…
math.SG2023★ 1 cited
Isomorphisms of Symplectic Torus Quotients
Hans-Christian Herbig, Gerald W. Schwarz, Christopher Seaton
We call a reductive complex group quasi-toral if is a torus. Let be quasi-toral and let be a faithful -modular -module. Let (the shell) be the zero fibe…