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16h
asked Question on a derivation regarding the non-linear ODE $x'' = -U'(x)$, $U$ potential
Aug
25
asked Constant solutions of separable ODE
Aug
16
asked Condition on Equality of closure of open ball and closed ball, suppose I have a counterexample
Aug
15
accepted Proof, that equation decribes trace of curve, which is supposed to be simple
Aug
15
comment Proof, that equation decribes trace of curve, which is supposed to be simple
Thank you! Can you please make this an answer, so I can mark it as accepted...
Aug
15
asked Proof, that equation decribes trace of curve, which is supposed to be simple
Aug
15
accepted Ways to represent functions of bounded variation as the difference of two monotone functions
Aug
15
asked Ways to represent functions of bounded variation as the difference of two monotone functions
Aug
10
comment Length of Difference Curve
Does $L(\varphi_2 - \varphi_1) \ge L(\varphi_1) - L(\varphi_2)$ holds, I guess yes?
Aug
10
comment Length of Difference Curve
No, I meant pointwise addition. But thanks for pointing out!
Aug
10
asked Length of Difference Curve
Aug
10
asked Rules to evaluate Suprema and Infima
Aug
10
accepted Why define the Lebesgue-Integral just for measurable functions?
Aug
10
comment Why define the Lebesgue-Integral just for measurable functions?
What is Lebesgue's original approach?
Aug
9
comment Why define the Lebesgue-Integral just for measurable functions?
Do you have an example where this fails for non-measurable functions?
Aug
9
asked Why define the Lebesgue-Integral just for measurable functions?
Aug
6
comment Different Formulations of Riesz' lemma
Yes, its a trivial fact!
Aug
6
comment Different Formulations of Riesz' lemma
Yes, Version 4 is false, I meant $1 \ge \inf_{u\in U} || x_{\delta} - u || \ge \delta$! @David Mitra: Guess that would be the cause.
Aug
6
asked Different Formulations of Riesz' lemma
Jul
29
awarded  Popular Question