On the shape of the convex hull of random points
Article
Received:
Revised:
- 62 Downloads
- 5 Citations
Summary
Denote by E n the convex hull of n points chosen uniformly and independently from the d-dimensional ball. Let Prob(d, n) denote the probability that E n has exactly n vertices. It is proved here that Prob(d, 2d/2d-ɛ)→1 and Prob(d, 2d/2d(3/4)+ɛ)→0 for every fixed ɛ>0 when d→∞. The question whether E n is a k-neighbourly polytope is also investigated.
Keywords
Hull Stochastic Process Probability Theory Convex Hull Statistical Theory
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
References
- 1.Bárány, I., Füredi, Z.: Approximation of the sphere by polytopes having few vertices. To appear in Proc. Am. Math. Soc.Google Scholar
- 2.Blaschke, W.: Vorlesungen über Differentialgeometrie II. Affine Differentialgeometrie. Berlin: Springer 1923Google Scholar
- 3.Buchta, C.: On a conjecture of R.E. Miles about the convex hull of random points. Monatsh. Math. 102, 91–102 (1986)Google Scholar
- 4.Buchta, C., Müller, J.: Random polytopes in a ball. J. Appl. Probab. 21, 753–762 (1984)Google Scholar
- 5.Chernoff, H.: A measure of asymptotic efficiency for tests of an hypothesis based on the sum of observations. Ann. Math. Statist. 23, 493–507 (1952)Google Scholar
- 6.Elekes, G.: A geometric inequality and the complexity of computing volume. Discrete. Comput. Geom. 1, 289–292 (1986)Google Scholar
- 7.Erdös, P., Spencer, J.: Probabilistic methods in combinatorics. Budapest: Akadémiai Kiadó 1974Google Scholar
- 8.Füredi, Z.: Random polytopes in the d-dimensional cube. Discrete Comput. Geom. 1, 315–319 (1986)Google Scholar
- 9.Gruber, P.M.: Approximation of convex bodies by polytopes. In: Gruber, P.M., Wills, J.M. (eds.). Convexity and its applications, pp. 131–162. Basel: Birkhauser 1983Google Scholar
- 10.Hostinsky, B.: Sur les probabilités géométriques. Publ. Fac. Sci. Univ. Masaryk. Brno. 1925Google Scholar
- 11.Kingman, J.F.C.: Random secants of a convex body. J. Appl. Probab. 6, 660–672 (1969)Google Scholar
- 12.Lovász, L.: An algorithmic theory of numbers, graphs and convexity. Preprint, Report No. 85368-OR, University of Bonn 1985Google Scholar
- 13.Miles, R.E.: Isotropic random simplices. Adv. Appl. Probab. 3, 353–382 (1971)Google Scholar
- 14.Rényi, A.: Probability theory. Amsterdam: North-Holland 1970Google Scholar
- 15.Rényi, A., Sulanke, R.: Über die convexe Hülle von n zufällig gewählten Punkten I–II. Z. Wahrscheinlichkeitstheor. Verw. Geb. 2, 75–84 (1963); 3, 138–147 (1964)Google Scholar
- 16.Spencer, F.: Sequences with small discrepancy relative to n events. Compositio Math. 47, 365–392 (1982)Google Scholar
- 17.Wendel, J.G.: A problem in geometric probability. Math. Scand. 11, 109–111 (1962)Google Scholar
Copyright information
© Springer-Verlag 1988