We consider geometric properties of 3-jet non-degenerate functions in connection with Nekhoroshev theory. In particular, after showing that 3-jet non-degenerate functions are “almost quasi-convex”, we prove that they are steep and compute explicitly the steepness indices (which do not exceed 2) and the steepness coefficients.

On steepness of 3-jet non degenerate functions

Guzzo Massimiliano
2019

Abstract

We consider geometric properties of 3-jet non-degenerate functions in connection with Nekhoroshev theory. In particular, after showing that 3-jet non-degenerate functions are “almost quasi-convex”, we prove that they are steep and compute explicitly the steepness indices (which do not exceed 2) and the steepness coefficients.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3297364
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