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Characterization of homogeneous scalar variational problems solvable for all boundary data

Published online by Cambridge University Press:  11 July 2007

M. A. Sychev
Affiliation:
Carnegie Mellon University, Pittsburgh, PA 15213-3809, USA

Abstract

It is known that the condition ‘eitherL (F) ≠ Ø or there exist υ1,…,υqRnsuch thatF ∈ int co {υ1,…,υq} characterizes solvability of the problemwith f(·) = 〈F,·〉.

We extend this result to the case of lower semicontinuous integrands L : RnR.

We also show that validity of this condition for all FRn is both a necessary and sufficient requirement for solvability of all minimization problems with sufficiently regular Ω and f. Moreover, the assumptions on Ω and f can be completely dropped if L has sufficiently fast growth at infinity.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 2000

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