Automorphisms and opposition in spherical buildings of exceptional type, I

19 Feb 2020 Parkinson James Van Maldeghem Hendrik

To each automorphism of a spherical building there is naturally associated an "opposition diagram", which encodes the types of the simplices of the building that are mapped onto opposite simplices. If no chamber (that is, no maximal simplex) of the building is mapped onto an opposite chamber then the automorphism is called "domestic"... (read more)

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