Volume 10, Number 1, January 2004
|Page(s)||123 - 141|
|Published online||15 February 2004|
Turnpike theorems by a value function approach
UMR Analyse des Systèmes et Biométrie,
2, place Viala, 34060 Montpellier, France;
2 GREQAM, université de la Méditerranée, 2, rue de la Vieille Charité, 13002 Marseille, France; firstname.lastname@example.org.
Revised: 6 August 2003
Turnpike theorems deal with the optimality of trajectories reaching a singular solution, in calculus of variations or optimal control problems. For scalar calculus of variations problems in infinite horizon, linear with respect to the derivative, we use the theory of viscosity solutions of Hamilton-Jacobi equations to obtain a unique characterization of the value function. With this approach, we extend for the scalar case the classical result based on Green theorem, when there is uniqueness of the singular solution. We provide a new necessary and sufficient condition for turnpike optimality, even in the presence of multiple singular solutions.
Mathematics Subject Classification: 34H05 / 49K05 / 49L25
Key words: Calculus of variations / infinite horizon / Hamilton-Jacobi equation / viscosity solutions / turnpike.
© EDP Sciences, SMAI, 2004
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