A remark on expanding maps

Author:

Chang Kung Ching,Li Shu Jie

Abstract

In this paper we discuss the following problem stated by L. Nirenberg: Let T T be an expanding map H H H \to H ( H H is a Hilbert space) with T ( 0 ) = 0 T(0) = 0 . Suppose T T maps a neighborhood of the origin onto a neighborhood of the origin. Does T T map H H onto H H ? We answer positively the problem when T T is differentiable.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference5 articles.

1. Notes on Mathematics and its Applications;Schwartz, J. T.,1969

2. Monotone (nonlinear) operators in Hilbert space;Minty, George J.;Duke Math. J.,1962

3. On the Fredholm alternative for nonlinear operators;Browder, Felix E.;Bull. Amer. Math. Soc.,1970

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