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May 25, 2018 at 19:59 comment added Ludwig @lcv: matrices $A_1$ and $A_2$ are real and the commutator $[A_1,A_2]$ is (real and) skew-symmetric.
May 25, 2018 at 19:49 comment added lcv Are your matrices real or complex? Skew symmetric and real or just skew symmetric?
May 25, 2018 at 18:35 history edited Ludwig CC BY-SA 4.0
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May 25, 2018 at 0:30 history edited Ludwig CC BY-SA 4.0
Added simplifying assumption
May 24, 2018 at 4:32 history edited Ludwig CC BY-SA 4.0
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May 23, 2018 at 9:20 answer added user539887 timeline score: 1
May 23, 2018 at 2:03 comment added lcv @AnthonyQuas why not? I mean, that's the question no?
May 22, 2018 at 17:03 history edited Ludwig CC BY-SA 4.0
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May 22, 2018 at 5:53 comment added Anthony Quas If you differentiate the expression, you obtain the differential equation $\dot X(t)=f(t)X(t)$, where $X(t)=I+S(t)$. If $A_1$ and $A_2$ don't commute, there is no reason to expect solutions of this differential equation to remain bounded.
May 22, 2018 at 5:11 history edited Ludwig CC BY-SA 4.0
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May 22, 2018 at 1:56 history edited Ludwig CC BY-SA 4.0
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May 22, 2018 at 1:19 history asked Ludwig CC BY-SA 4.0