On isometries of twin buildings
arXiv:2303.18035 · doi:10.1007/s13366-020-00524-5
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).
14 pages