User astrobarrel - MathOverflow

astrobarrel

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May 21, 2021
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Apr 10, 2020
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Apr 9, 2020

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ap.analysis-of-pdes

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hamiltonian-mechanics

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Invertibility of the characteristic flow in Hamilton-Jacobi equations

Apr 9, 2020

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5

Finding $ \max \mathrm{rk} \, A'(0)$ among all $A\in C^1(\mathbb{R}, M_n)$ with $ \mathrm{rk} A(t) \leq r$

5

Is set of isolated points of S closed?