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Variational formulation of a population dynamics problem. (English) Zbl 1108.92034

Summary: We consider the existence and uniqueness of a weak solution of a population dynamics problem with an additional structure. This is proved by means of the contraction mapping principle under the assumption that the linear operator \(A\) is accretive.

MSC:

92D25 Population dynamics (general)
35A15 Variational methods applied to PDEs
46N60 Applications of functional analysis in biology and other sciences
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