1-twinnings of buildings

Autor: Hendrik Van Maldeghem, Peter Abramenko
Rok vydání: 2001
Předmět:
Zdroj: Mathematische Zeitschrift. 238:187-203
ISSN: 0025-5874
DOI: 10.1007/pl00004899
Popis: In this paper, we characterize twinnings of buildings by 1-twinnings and one further condition concerning twin apartments. Specialized to the spherical case, we obtain new characterizations of the opposition relation in such buildings. We also give a new description of the standard twin building of type \(\widetilde{A}_{n-1}\).
Databáze: OpenAIRE
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