Analytical and Numerical Solutions of the Riccati Equation Using the Method of Variation of Parameters. Application to Population Dynamics

Author:

Tumbarell Aranda Orestes1,Oliveira Fernando A.2

Affiliation:

1. Instituto de Física, Universidade de Brasília, Brasília DF 70919-970, Brasil; International Center for Condensed Matter Physics, CP 04455Brasilia DF 70919-970, Brazil

2. Instituto de Física, Universidade de Brasília, Brasília DF 70919-970, Brasil; International Center for Condensed Matter Physics, CP 04455, Brasilia DF 70919-970, Brazil; Instituto de Física, Universidade Federal da Bahia, Campus Universitário da Federação, Rua Barão de Jeremoabo s/n, Salvador, BA 40170-115, Brasil

Abstract

Abstract This work presents new approximate analytical solutions for the Riccati equation (RE) resulting from the application of the method of variation of parameters. The original equation is solved using another RE explicitly dependent on the independent variable. The solutions obtained are easy to implement and highly applicable, which is confirmed by solving several examples corresponding to REs whose solution is known, as well as optimizing the method to determine the density of the members that make up a population. In this way, new perspectives are open in the study of the phenomenon of pattern formation.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

CoordenaçÃo de Aperfeiçoamento de Pessoal de Nível Superior

FundaçÃo de Apoio à Pesquisa do Distrito Federal

Publisher

ASME International

Subject

Applied Mathematics,Mechanical Engineering,Control and Systems Engineering,Applied Mathematics,Mechanical Engineering,Control and Systems Engineering

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