Mathematics – Algebraic Geometry
Scientific paper
2007-04-18
Discrete Mathematics, Volume 308, number 1, pp 148-152, 2008
Mathematics
Algebraic Geometry
Excerpt from my Ph.D. Thesis; to appear on "Discrete Mathematics"
Scientific paper
10.1016/j.disc.2007.03.085
We prove that certain numbers occurring in a problem of paths enumeration,
studied by Niederhausen (Catlan Traffic at the Beach, The Electronic Journal of
Combinatorics, 9, (2002), 1--17), are top intersection numbers in the
cohomology ring of the grassmannians of the lines in the complex projective
(n+1)-space.
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