User Saúl RM

3 votes

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Existence of a function on the Euclidean space which differs by constants from locally defined functions

answered Jun 4, 2022 at 19:51

3 votes

On diffeomorphisms that preserve the metric

answered Dec 22, 2022 at 0:09

3 votes

Existence of a positive measurable set with disjoint preimage under iterated transformation

answered Apr 19 at 21:04

3 votes

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Differentiability along hyperplanes

answered Jun 11 at 13:08

3 votes

Natural examples of functions $f$ in $L^1([0,1])$ such that any function $g$ in the class $[f]$ is discontinuous everywhere

answered Jun 2 at 20:45

3 votes

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Is this set $\sigma$-compact in the Wasserstein space?

answered Jun 7 at 11:45

2 votes

For proper group action on closed Riemannian manifold, must the union of orbits with non-unique closest points to a given point be of 0 volume measure

answered Apr 16 at 2:12

2 votes

Approximating a strictly increasing non-negative function on a non-negative domain by polynomials with non-negative coefficients

answered Apr 5, 2023 at 14:06

2 votes

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Does this property characterize straight lines in the plane?

answered Apr 15, 2023 at 17:17

2 votes

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Maximum number of vectors with bounds on inner products

answered Feb 10, 2023 at 23:31

2 votes

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First visit of intervals for an irrational rotation

answered Nov 25, 2022 at 16:55

2 votes

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Property of sets of positive Lebesgue measure in $\mathbb{R}^2$

answered Nov 24, 2022 at 2:48

2 votes

Cardinality of a special set of continuous functions

answered Mar 31, 2022 at 14:12

2 votes

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Closed almost geodesics in a Riemannian manifold

answered May 12, 2022 at 12:00

2 votes

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Is every sequence of functions with uniformly bounded variation almost equicontinuous?

answered Jun 4, 2022 at 16:11

2 votes

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Estimating the volume of a convex shape in higher dimensions based only on normal sections

answered Oct 25, 2022 at 2:48

2 votes

Bounded positioning of hypercubes

answered Oct 30, 2022 at 2:50

2 votes

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Convex/concave points of a differentiable function

answered Mar 14, 2022 at 0:07

2 votes

Does using continued fractions work to give a homeomorphism $\mathbb{Q}^+ \rightarrow (\mathbb{Q}^+)^2$?

answered Apr 11, 2022 at 8:12

2 votes

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On convex planar regions that can be cut into only a specified number of mutually congruent and connected pieces

answered Jan 12, 2022 at 9:20

2 votes

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extend a continuous map on sphere to ball such that the image is out of a compact set

answered Dec 27, 2021 at 13:01

2 votes

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Existence of fine approximate of a convex body in $\mathbb R^d$ with convex hull of $\mathcal O(d)$ points

answered Dec 28, 2021 at 17:34

1 vote

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On the Lipschitz continuity of $x \mapsto \arg\min_{c \in C}d(x,c)$ w.r.t Hausdorff distance

answered Dec 30, 2021 at 19:12

1 vote

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A plane ray which limits onto itself

answered Mar 16, 2022 at 17:17

1 vote

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Deduce that a function is zero on interval $[0,M]$

answered Oct 30, 2022 at 19:48

1 vote

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Continuity of a reaching time of a submanifold

answered Nov 14, 2022 at 4:48

1 vote

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Convergence rate of a sequence

answered Oct 13, 2022 at 14:22

1 vote

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Is there at least one path in the common boundary of two open sets?

answered May 3, 2022 at 15:12

1 vote

Can ($X^I$, product topology) and ($X^I$, box topology) be homeomorphic for some nontrivial $X$ and infinite $I$?

answered Oct 8, 2022 at 1:21

1 vote

Accepted

Lipschitz maps with Hölder inverse preserve the doubling property

answered Dec 21, 2022 at 21:50

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99 Answers

Existence of a function on the Euclidean space which differs by constants from locally defined functions

On diffeomorphisms that preserve the metric

Existence of a positive measurable set with disjoint preimage under iterated transformation

Differentiability along hyperplanes

Natural examples of functions $f$ in $L^1([0,1])$ such that any function $g$ in the class $[f]$ is discontinuous everywhere

Is this set $\sigma$-compact in the Wasserstein space?

For proper group action on closed Riemannian manifold, must the union of orbits with non-unique closest points to a given point be of 0 volume measure

Approximating a strictly increasing non-negative function on a non-negative domain by polynomials with non-negative coefficients

Does this property characterize straight lines in the plane?

Maximum number of vectors with bounds on inner products

First visit of intervals for an irrational rotation

Property of sets of positive Lebesgue measure in $\mathbb{R}^2$

Cardinality of a special set of continuous functions

Closed almost geodesics in a Riemannian manifold

Is every sequence of functions with uniformly bounded variation almost equicontinuous?

Estimating the volume of a convex shape in higher dimensions based only on normal sections

Bounded positioning of hypercubes

Convex/concave points of a differentiable function

Does using continued fractions work to give a homeomorphism $\mathbb{Q}^+ \rightarrow (\mathbb{Q}^+)^2$?

On convex planar regions that can be cut into only a specified number of mutually congruent and connected pieces

extend a continuous map on sphere to ball such that the image is out of a compact set

Existence of fine approximate of a convex body in $\mathbb R^d$ with convex hull of $\mathcal O(d)$ points

On the Lipschitz continuity of $x \mapsto \arg\min_{c \in C}d(x,c)$ w.r.t Hausdorff distance

A plane ray which limits onto itself

Deduce that a function is zero on interval $[0,M]$

Continuity of a reaching time of a submanifold

Convergence rate of a sequence

Is there at least one path in the common boundary of two open sets?

Can ($X^I$, product topology) and ($X^I$, box topology) be homeomorphic for some nontrivial $X$ and infinite $I$?

Lipschitz maps with Hölder inverse preserve the doubling property