c-Extensions of the F4(2)-building

• Main Authors: Ivanov, A. A., Pasechnik, Dmitrii V.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2012
• Subjects: DRNTU::Science::Mathematics::Discrete mathematics::Theory of computation
• Online Access: https://hdl.handle.net/10356/95691; http://hdl.handle.net/10220/8273
• Institution: Nanyang Technological University

We construct four geometries ε1,..., ε4 with the diagram such that any two elements of type 1 are incident to at most one common element of type 2 and three elements of type 1 are pairwise incident to common elements of type 2 if and only if they are incident to a common element of type 5. The autom...