THE CONVEX HULL OF A SPHERICALLY SYMMETRIC SAMPLE

Using the isomorphism between convex subsets of Euclidean space and continuous functions on the unit sphere we describe the probability measure of the convex hull of a random sample. When the sample is spherically symmetric the asymptotic behavior of this measure is determined. There are three distinct limit measures, each corresponding to one of the classical extreme-value

[1]  H. Carnal Die konvexe Hülle von n rotationssymmetrisch verteilten Punkten , 1970 .

[2]  H. Ruben,et al.  A canonical decomposition of the probability measure of sets of isotropic random points in Rn , 1980 .

[3]  G. Matheron Random Sets and Integral Geometry , 1976 .

[4]  P. Billingsley,et al.  Convergence of Probability Measures , 1969 .

[5]  P. J. Huber The 1972 Wald Lecture Robust Statistics: A Review , 1972 .

[6]  B. Gnedenko Sur La Distribution Limite Du Terme Maximum D'Une Serie Aleatoire , 1943 .

[7]  A. Bebbington A Method of Bivariate Trimming for Robust Estimation of the Correlation Coefficient , 1978 .

[8]  T. Sager An Iterative Method for Estimating a Multivariate Mode and Isopleth , 1979 .

[9]  J. A. Hartigan,et al.  Uniform Convergence of the Empirical Distribution Function Over Convex Sets , 1977 .

[10]  A. Rényi,et al.  über die konvexe Hülle von n zufällig gewählten Punkten , 1963 .

[11]  H. Raynaud Sur L'enveloppe convexe des nuages de points aleatoires dans Rn . I , 1970 .

[12]  S. Resnick Weak Convergence to Extremal Processes , 1975 .

[13]  B. Ripley,et al.  Finding the edge of a Poisson forest , 1977, Journal of Applied Probability.

[14]  B. Efron The convex hull of a random set of points , 1965 .

[15]  L. Rogers The probability that two samples in the plane will have disjoint convex hulls , 1978 .

[16]  Limiting Sets and Convex Hulls of Samples from Product Measures , 1969 .

[17]  H. G. Eggleston Convexity by H. G. Eggleston , 1958 .

[18]  L.F.M. deHaan On regular variation and its application to the weak convergence of sample extremes , 1970 .

[19]  Shie-Shien Yang,et al.  General Distribution Theory of the Concomitants of Order Statistics , 1977 .

[20]  V. Barnett The Ordering of Multivariate Data , 1976 .

[21]  William F. Eddy,et al.  The distribution of the convex hull of a Gaussian sample , 1980 .

[22]  James Pickands,et al.  The two-dimensional Poisson process and extremal processes , 1971, Journal of Applied Probability.

[23]  S. Mase,et al.  Random compact convex sets which are infinitely divisible with respect to Minkowski addition , 1979, Advances in Applied Probability.