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math.QA2017
Covering Groups of Nonconnected Topological Groups and 2-Groups
Dmitriy Rumynin, Demyan Vakhrameev, Matthew Westaway
We investigate the universal cover of a topological group that is not necessarily connected. Its existence as a topological group is governed by a Taylor cocycle, an obstruction in…
math.RT2017
Integration of Modules I: Stability
Dmitriy Rumynin, Matthew Westaway
We explore the integration of representations from a Lie algebra to its algebraic group in positive characteristic. An integrable module is stable under the twists by group element…