Null Controllability of a Nonlinear Age Structured Model for a Two-Sex Population. (29th March 2021)

• Record Type: Journal Article
• Authors: Traoré, Amidou; Sougué, Okana S.; Simporé, Yacouba; Traoré, Oumar
• Other Names: Kovtunenko Victor Academic Editor.
• Is Part Of: Abstract and applied analysis. Volume 2021(2021)
• Publication Date: 2021-03-29
• Subjects: Mathematical analysis -- Periodicals; Mathematical analysis; Applied Mathematics; Mathematical Analysis; Periodicals; 515.05
• DOI: 10.1155/2021/6666942
• Languages: English
• ISSNs: 1085-3375

Abstract

Abstract : This paper is devoted to study the null controllability properties of a nonlinear age and two-sex population dynamics structured model without spatial structure. Here, the nonlinearity and the couplage are at the birth level. In this work, we consider two cases of null controllability problem. The first problem is related to the extinction of male and female subpopulation density. The second case concerns the null controllability of male or female subpopulation individuals. In both cases, if A is the maximal age, a time interval of duration A after the extinction of males or females, one must get the total extinction of the population. Our method uses first an observability inequality related to the adjoint of an auxiliary system, a null controllability of the linear auxiliary system, and after Kakutani's fixed-point theorem.