Can someone prove or disproof the claim:
Given a locally lipschitz vector field $f$ with associated ODE $\dot x = f(x)$, then the solution $x$ must be locally lipschitz
Note: local lipschitz condition:
$\exists r, L$ s.t. $\forall x,y, |x - x_o | < r, |y - y_o| < r \Rightarrow |f(x) - f(y)| \leq L |x-y|$
I tried some examples:
$\dot x = 1 \Rightarrow x = t$. Then $f$ is locally lipschitz (in fact globally), and $x$ is locally lipschitz
$\dot x = x \Rightarrow x = x_o \exp(t)$. $f$ is locally lipschitz (but not globally), and $x$ is locally lipschitz (since$ x \in C^1$)
$\dot x = x^2$ and higher ups are a bit too involved...
If the claim holds, does it also hold for global lipschitz vector fields?