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Questions on the calculus of variations, which deals with the optimization of functionals mostly defined on infinite dimensional spaces.

17 votes
1 answer
500 views

Is a smooth action of a semi-simple Lie group linearizable near a stationary point?

Suppose that $G$ is a semi-simple Lie group that acts smoothly (i.e., $C^\infty$) on a smooth, finite dimensional manifold $M$. Does it follow that the action of $G$ is linearizable near any stationar …
Dick Palais's user avatar
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