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SEMINAR: Groups and Combinatorics Seminar: Automorphisms and opposition in twin buildings

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Groups and Combinatorics Seminar

Alice Devillers (UWA)

will speak on

Automorphisms and opposition in twin buildings.

at 11am on Wednesday 9th of May in MLR2.

Abstract: Opposition in twin buildings generalises the notion of opposition in spherical buildings. With James Parkison and Hendrik Van Maldeghem, we looked at automorphisms mapping some/all residues to opposite residues.For instance we proved that an automorphism of a thick twin building (swapping the two halves) always maps at least one spherical residue to an opposite. However, if the building is also locally finite and 2-spherical, then not every residue of a given type can be mapped to an opposite.
Speaker(s) Alice Devillers
Location Maths Lecture Room 2
Contact Michael Giudici <[email protected]>
Start Wed, 09 May 2012 11:00
End Wed, 09 May 2012 11:45
Submitted by Michael Giudici <[email protected]>
Last Updated Mon, 07 May 2012 14:53
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