Mathematics Asked on November 9, 2021
We are given a Euclidean space $E$ and a finite subset ${A_{1}, ldots, A_{k}}$ of $GL(E)$. Consider the one-parameter groups $g_{k}^{t} : t mapsto e^{t A_{k}}$. The operators $A_{k}$ are such that:
Since the groups $g_{k}^{t}$ are subgroups of $GL(E)$, so is the group, $G$, generated by their union. Are we guaranteed that $G$ is Lie and that the orbit $Gx$ of an $x in E$ under the action of $G$ is a submanifold of $E$? If so, am I correct in thinking that the dimension of this manifold equals the dimension of the image of $x$ under the Lie algebra of $G$? Any sources to study would be appreciated as well.
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