Applied Mathematics and Nonlinear Sciences
Journal license

Journal

Applied Mathematics and Nonlinear Sciences


Volume
& Issue

Volume 2, Issue 1


Published
on

June 23, 2017


Pages

213-224


DOI

Article

Computing the two first probability density functions of the random Cauchy-Euler differential equation: Study about regular-singular points


Authors

J.-C. Cortés Affiliation:
Instituto Universitario de Matemática Multidisciplinar, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
, A. Navarro-Quiles Affiliation:
Instituto Universitario de Matemática Multidisciplinar, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
, J.-V. Romero Affiliation:
Instituto Universitario de Matemática Multidisciplinar, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain
and M.-D. Roselló Affiliation:
Instituto Universitario de Matemática Multidisciplinar, Universitat Politècnica de València, Camino de Vera s/n, 46022, Valencia, Spain


Abstract

In this paper the randomized Cauchy-Euler differential equation is studied. With this aim, from a statistical point of view, both the first and second probability density functions of the solution stochastic process are computed. Then, the main statistical functions, namely, the mean, the variance and the covariance functions are determined as well. The study includes the computation of the first and second probability density functions of the regular-singular infinite point via an adequate mapping transforming the problem about the origin. The study is strongly based upon the Random Variable Transformation technique along with some results that have been recently published by some of authors to the random homogeneous linear second-order differential equation. Finally, an illustrative example is shown.


Keywords

random Cauchy-Euler differential equation, Random Variable Transformation technique, first and second probability density functions, 35R60, 60H15, 60H35, 68U20


Citation

Cortés, J., Navarro-Quiles, A., Romero, J., & Roselló, M. (2017). Computing the two first probability density functions of the random cauchy-euler differential equation: Study about regular-singular points. Applied Mathematics and Nonlinear Sciences, 2(1), 213–224. https://doi.org/10.21042/AMNS.2017.1.00018

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