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Sep 1, 2022 at 11:19 vote accept No-one
Aug 30, 2022 at 14:57 answer added No-one timeline score: 1
Aug 30, 2022 at 11:46 comment added Vladimir Zolotov @Titti yeah. Staircase should work. Maybe you should post as answer so it's more visible.
Aug 29, 2022 at 23:36 comment added No-one I think that the Volterra function or the "staircase" function of the fat Cantor set are counter-examples to my question. See math.stackexchange.com/questions/3380703/…
Aug 29, 2022 at 23:12 comment added No-one @LeoMoos Do you know how to overcome the difficulty that even if $f'(0)=0$, a priori $f'$ could be large in any neighborhood of $0$ since we don't have continuity? Only thing that comes to my mind is the Lebesgue differentiation theorem but it doesn't seem to help much.
Aug 29, 2022 at 23:07 history edited No-one CC BY-SA 4.0
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Aug 29, 2022 at 22:05 comment added Leo Moos I think that with the most recent edit in mind - namely, that $M$ is assumed to be a Lipschitz graph - the desired result holds at the points where $f$ is differentiable. This would have full measure by Rademacher's theorem.
Aug 29, 2022 at 19:51 comment added No-one @AntonPetrunin What do you mean by double twist? Do you know of any paper that does this construction in a more detailed way? Thanks.
Aug 29, 2022 at 19:48 answer added Vladimir Zolotov timeline score: 2
Aug 29, 2022 at 19:25 history edited No-one CC BY-SA 4.0
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Aug 29, 2022 at 19:11 history edited No-one CC BY-SA 4.0
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Aug 29, 2022 at 18:36 comment added Anton Petrunin An counterexample exists for $m=1$ and $n=2$. Take a smooth curve and add to it double twists at sufficiently dense set of point, it can be done by keeping the curve smooth and bilipscitz with fixed constants + the increase of length can be arbitrary small. Then repeat the operation for smaller twists at even denser set of points + pass to the limit.
Aug 29, 2022 at 15:12 comment added Vladimir Zolotov It seems to me that $(1+\epsilon)$-biLipshitz corresponds to the situation when you have $Lip(u) < \epsilon$ bound. (And I think there is a counterexample for this.)
Aug 29, 2022 at 13:26 history edited No-one CC BY-SA 4.0
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Aug 29, 2022 at 13:23 comment added No-one crossposted to mathstackexchange math.stackexchange.com/questions/4520925/…
Aug 29, 2022 at 12:45 history edited No-one CC BY-SA 4.0
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Aug 29, 2022 at 12:28 history asked No-one CC BY-SA 4.0