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MATHEMATICS
On the average perimeter of the inscribed random polygon
Ya. Yu. Nikitinab, T. A. Polevayac a St. Petersburg State University, 7-9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
b National Research University Higher School of Economics, ul. Soyuza Pechatnikov, 16, St. Petersburg, 190008, Russian Federation
c St. Petersburg National Research University of Information Technologies, Mechanics and Optics, Kronverkskiy pr., 49, St. Petersburg, 197101, Russian Federation
Abstract:
Suppose we put on the unit circumference n independent uniformly distributed random points and build a convex random polygon with the vertices in these points. What are the average area and the average perimeter of this polygon? The average area was calculated by K. Brown some years ago. We calculatе the average perimeter and obtain quite similar formulae. In the same time we discuss the rate of convergence of this value to the limit. We evaluate also the average value of the sum of squares for the sides of the inscribed triangle.
Keywords:
random polygon, perimeter, convexity, uniform distribution.
Received: 17.05.2019 Revised: 30.06.2019 Accepted: 19.09.2019
Citation:
Ya. Yu. Nikitin, T. A. Polevaya, “On the average perimeter of the inscribed random polygon”, Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 7:1 (2020), 77–84; Vestn. St. Petersbg. Univ., Math., 7:2 (2020), 58–63
Linking options:
https://www.mathnet.ru/eng/vspua205 https://www.mathnet.ru/eng/vspua/v7/i1/p77
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Abstract page: | 26 | Full-text PDF : | 9 |
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