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arXiv · 2303.18035

On isometries of twin buildings

Sebastian Bischof·Anton Chosson·Bernhard Mühlherr
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Abstract

A twin building consists of two buildings that are twinned by a codistance function. We prove that the local structure of a twin building uniquely determines the two buildings up to isomorphism. This has been known for twin buildings satisfying a technical condition (co).

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Sebastian Bischof, Anton Chosson, Bernhard Mühlherr. 2023-03-31. On isometries of twin buildings. https://doi.org/10.1007/s13366-020-00524-5

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