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JOURNALS // Regular and Chaotic Dynamics // Archive

Regul. Chaotic Dyn., 2007 Volume 12, Issue 6, Pages 589–601 (Mi rcd640)

On the 65th birthday of R.Cushman

Skew Critical Problems

C. Cuell, G.W. Patrick

Department of Mathematics and Statistics, University of Saskatchewan, Saskatoon, Saskatchewan, SK S7N 5E6, Canada

Abstract: Skew critical problems occur in continuous and discrete nonholonomic Lagrangian systems. They are analogues of constrained optimization problems, where the objective is differentiated in directions given by an apriori distribution, instead of tangent directions to the constraint. We show semiglobal existence and uniqueness for nondegenerate skew critical problems, and show that the solutions of two skew critical problems have the same contact as the problems themselves. Also, we develop some infrastructure that is necessary to compute with contact order geometrically, directly on manifolds.

Keywords: nonholonomic mechanics, variational principles, Lagrange–d'Alembert principle, contact order.

MSC: 37J60, 70F25, 70H30, 58C15

Received: 25.04.2007
Accepted: 09.10.2007

Language: English



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