Regulation of births for viability of populations governed by age-structured problems

Abstract : We assume that the evolution of the population is governed by a controlled McKendrick age-structured partial differential equation where the mortality rate and immigrated population levels are no longer known coefficients, but contingent regulation parameters chosen for a given purpose, for instance, for requiring that the population satisfies prescribed viability constraints depending on time and age. The Lotka renewal equation relating the boundary condition (number of births) to the integral with respect to age of the population is replaced by the introduction of another regulation parameter in the boundary condition, regarded as a natality policy. We may control it by its derivative, regarded as a natality decision. We then construct a regulation map, associating with the population level, the time and the age the subset of natality policies, a mortality rates and an immigration levels needed for governing viable evolutions of the population.
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Journal of Evolution Equations, Springer Verlag, 2012, 12, pp.99-117. 〈10.1007/s00028-011-0125-z〉
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Soumis le : jeudi 21 juin 2012 - 14:07:20
Dernière modification le : jeudi 10 mai 2018 - 02:00:55

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Jean-Pierre Aubin. Regulation of births for viability of populations governed by age-structured problems. Journal of Evolution Equations, Springer Verlag, 2012, 12, pp.99-117. 〈10.1007/s00028-011-0125-z〉. 〈hal-00710658〉

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