Straight line arrangements in the real projective plane
Let A be an arrangement of n pseudolines in the real projective plane and let p 3(A) be the number of triangles of A. Grünbaum has proposed the following question. Are there infinitely many simple arrangements of straight lines with p 3(A)=1/3n(n−1)? In this paper we answer this question affirmatively.
KeywordsDiscrete Comput Geom Marie Curie Infinite Family Recursive Method Line Arrangement
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