Mathematics – Optimization and Control
Scientific paper
2009-06-26
Systems \& Control Letters / Systems and Control Letters 60, 3 (2011) 192-197
Mathematics
Optimization and Control
Scientific paper
10.1016/j.sysconle.2010.12.004
Some monospecies age class models, as well as specific multi-species models (with so-called technical interactions), exhibit useful monotonicity properties. This paper deals with discrete time monotone bioeconomics dynamics in the presence of state and control constraints. In practice, these latter "acceptable configurations" represent production and preservation requirements to be satisfied for all time, and they also possess monotonicity properties. A state $\state$ is said to belong to the viability kernel if there exists a trajectory, of states and controls, starting from $\state$ and satisfying the constraints. Under monotonicity assumptions, we present upper and lower estimates of the viability kernel. This helps delineating domains where a viable management is possible. Numerical examples, in the context of fisheries management, for the Chilean sea bass (\emph{Dissostichus eleginoides}) and Alfonsino (\emph{Beryx splendens}) are given.
Cabrera Hector Ramirez
Gajardo Pedro
Lara Michel de
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