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This article is cited in 7 scientific papers (total in 7 papers)
Counting real rational functions with all real critical values
B. Z. Shapiroa, A. D. Vainshteinb a Stockholm University
b University of Haifa
Abstract:
We study the number $\#_n^\mathbb R$ of real rational degree $n$ functions (considered up to a linear fractional transformation of the independent variable) with a given set of $2n-2$ distinct real critical values. We present a combinatorial interpretation of these numbers and provide exact and asymptotic enumeration results for certain particular cases.
Key words and phrases:
Real rational functions; real critical values; chord diagrams; enumeration.
Received: August 5, 2002
Citation:
B. Z. Shapiro, A. D. Vainshtein, “Counting real rational functions with all real critical values”, Mosc. Math. J., 3:2 (2003), 647–659
Linking options:
https://www.mathnet.ru/eng/mmj103 https://www.mathnet.ru/eng/mmj/v3/i2/p647
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