Hypersurfaces and variational formulas in sub-Riemannian Carnot groups

Autor: Francescopaolo Montefalcone
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Popis: In this paper we study smooth immersed non-characteristic submanifolds (with or without boundary) of k-step sub-Riemannian Carnot groups, from a differential-geometric point of view. The methods of exterior differential forms and moving frames are extensively used. Particular emphasis is given to the case of hypersurfaces. We state divergence-type theorems and integration by parts formulas with respect to the intrinsic measure σ H n − 1 on hypersurfaces. General formulas for the first and the second variation of the measure σ H n − 1 are proved.
Databáze: OpenAIRE