Titre: Uniqueness Theorems for Variational Problems by the Method of Transformation Groups
�diteur: Springer Nature B.V.
Date de parution: 2014
Langue: anglais
ISBN � 10 chiffres: 3662175231
ISBN � 13 chiffres: 9783662175231
Reliure: PAP
�tat de l'article: New

A propos de ce titre

Synopsis

A classical problem in the calculus of variations is the investigation of critical points of functionals {\cal L} on normed spaces V. The present work addresses the question: Under what conditions on the functional {\cal L} and the underlying space V does {\cal L} have at most one critical point?

A sufficient condition for uniqueness is given: the presence of a "variational sub-symmetry", i.e., a one-parameter group G of transformations of V, which strictly reduces the values of {\cal L}. The "method of transformation groups" is applied to second-order elliptic boundary value problems on Riemannian manifolds. Further applications include problems of geometric analysis and elasticity.

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