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Transactions of the American Mathematical Society

ISSN 1088-6850(online) ISSN 0002-9947(print)



Existence theorems for parametric problems in the calculus of variations and approximation

Author: Robert M. Goor
Journal: Trans. Amer. Math. Soc. 223 (1976), 347-365
MSC: Primary 49A50
MathSciNet review: 0425716
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Abstract: In this paper, we investigate the parametric growth condition which arises in connection with existence theorems for parametric problems of the calculus of variations. In particular, we study conditions under which the length of a curve is dominated in a suitable sense by its “cost". We show that we may restrict our attention to local growth conditions on a particular set. Then we link the growth conditions to a certain approximation problem on this set. Finally, we prove that under suitable topological restrictions related to dimension theory, the local and global problems can be solved.

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Keywords: Parametric problem, calculus of variations, orientor field, growth condition, Fréchet curve, parametric problems of optimal control
Article copyright: © Copyright 1976 American Mathematical Society