ArticleOriginal scientific text
Title
Are continuous mappings preserving normality necessarily linear?
Authors 1
Affiliations
- Mathematical Institute, Warsaw University of Technology , Plac Politechniki 1, 00-661 Warszawa, Poland
Abstract
An example of a normal nonlinear continuous function of a normal random variable is given. Also the Cauchy case is considered.
Keywords
normal distribution, Cauchy distribution, distributions of functions of random variables
Bibliography
- B. C. Arnold (1979), Some characterizations of the Cauchy distribution, Austral. J. Statist. 21, 166-169.
- N. L. Johnson, S. Kotz and N. Balakrishnan (1994), Continuous Univariate Distributions, Vol. I, Wiley, New York.
- I. I. Kotlarski (1967), Problem 6164, Amer. Math. Monthly 84, 575.
- M. F. Neuts (1979), Cauchy random variables, ( Solution to problem 6164), ibid. 86, 229.
- E. J. G. Pitman and E. J. Williams (1967), Cauchy-distributed functions of Cauchy variates, Ann. Math. Statist. 38, 916-918.
- L. Shepp (1964), Normal functions of normal random variables, SIAM Rev. 6, 459-460.
- E. J. Williams (1969), Cauchy-distributed functions and a characterization of the Cauchy distribution, Ann. Math. Statist. 40, 1083-1085.