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September 2002 A convex Darboux Theorem
Ivar Ekeland, Louis Nirenberg
Methods Appl. Anal. 9(3): 329-344 (September 2002).

Abstract

We give necessary and sufficent conditions for a smooth, generic, differential one-form w on Rn to decompose into a sum w = a1du1 +... +akduk, where the function a l are positive and the ul convex (or quasi-convex) near the origin.

Citation

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Ivar Ekeland. Louis Nirenberg. "A convex Darboux Theorem." Methods Appl. Anal. 9 (3) 329 - 344, September 2002.

Information

Published: September 2002
First available in Project Euclid: 17 June 2005

zbMATH: 1082.58501
MathSciNet: MR2023129

Rights: Copyright © 2002 International Press of Boston

Vol.9 • No. 3 • September 2002
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