Combinatorial Flag Varieties

We prove that -matroids associated with maps on compact closed surfaces are representable, with the space of representation provided by cohomology of the surface with punctured points.

• Type: Journal
• Year: 2000
• Where: JCT
• Authors: Alexandre V. Borovik, Israel M. Gelfand, Neil White
• Keywords: JCT 2000, Space, Surfaces