The Euler and Weierstrass conditions for nonsmooth variational problems

  • A. D. Ioffe
  • R. T. Rockafellar
Article
  • 69 Downloads

Abstract

Necessary conditions are developed for a general problem in the calculus of variations in which the Lagrangian function, although finite, need not be Lipschitz continuous or convex in the velocity argument. For the first time in such a broadly nonsmooth, nonconvex setting, a full subgradient version of Euler's equation is derived for an arc that furnishes a local minimum in the classical weak sense, and the Weierstrass inequality is shown to accompany it when the arc gives a local minimum in the strong sense. The results are achieved through new techniques in nonsmooth analysis.

Mathematics subject classifications (1991)

49K05 49J52 58C20 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • A. D. Ioffe
    • 1
  • R. T. Rockafellar
    • 2
  1. 1.Department of MathematicsTechnionHaifaIsrael
  2. 2.Departments of Mathematics and Applied MathematicsUniversity of WashingtonSeattleUSA

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