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seminars:comb:abstract.20010130
Kathryn Nyman (Cornell University)
Incidence Numbers for Line and Pseudo-line Arrangements
Abstract for the Combinatorics and Number Theory and Algebra Seminars 2001 January 30
Given n points in the plane, how many lines are determined? And how many point-line incidences? We look at this question by counting the flag Whitney numbers of geometric lattices of rank 3.
seminars/comb/abstract.20010130.txt · Last modified: 2020/01/29 14:03 (external edit)