User fweth

17 votes

1 answer

313 views

Show That A Particle In A Bounded Force Field Can Reach Any Point In Fixed Time Span

asked Apr 17, 2018 at 11:35

13 votes

0 answers

551 views

Questions on color theory, expressed in linear algebra

asked Jul 23, 2016 at 11:03

9 votes

2 answers

340 views

Set of diameter $\le 1$ contained in set of constant width $1$

asked Mar 4, 2016 at 4:25

9 votes

2 answers

2k views

Topology on the space of test functions

asked Dec 5, 2014 at 17:31

8 votes

1 answer

499 views

Topology From Sequences

asked Oct 16, 2018 at 2:58

7 votes

0 answers

132 views

Set Of Density Points

asked Sep 28, 2022 at 9:19

7 votes

2 answers

333 views

Axiomatic approach to the definition of variance

asked Sep 9, 2016 at 20:22

7 votes

2 answers

2k views

Good reference for string diagrams

asked Nov 25, 2015 at 0:14

6 votes

0 answers

667 views

When does pointwise convergence on compact space imply uniform convergence?

asked Feb 14, 2015 at 21:26

6 votes

1 answer

199 views

Duals In The Category Of Sets

asked Jul 9, 2018 at 16:27

5 votes

1 answer

163 views

Rotationally Invariant PDE Operators

asked Apr 10, 2023 at 19:11

5 votes

2 answers

167 views

Is The Power Object Functor Faithful?

asked Jul 28, 2023 at 8:14

5 votes

0 answers

392 views

Bochner integral vs regulated integral

asked Feb 16, 2015 at 14:06

5 votes

1 answer

678 views

Tensor product notation for $(x,y)\mapsto f(x)g(y)$

asked Feb 19, 2015 at 19:39

5 votes

1 answer

883 views

Fundamental proof of Taylor's theorem using little-o notations

asked Feb 28, 2015 at 13:52

5 votes

0 answers

761 views

Godel's Diagonalization Lemma As Application Of Lawvere's Fixed Point Theorem

asked Sep 19, 2017 at 6:56

4 votes

2 answers

189 views

Explanation on the symmetry between identity axiom and cut rule

asked Jun 22, 2015 at 8:39

4 votes

3 answers

205 views

Existence of measurable set $A\subseteq{\mathbb R}$ which is locally uncountable and so is its complement

asked Sep 26, 2016 at 19:02

4 votes

1 answer

2k views

Getting a matrix lexicographically sorted along both directions

asked Sep 27, 2016 at 20:26

4 votes

1 answer

315 views

$\times$ as symbol for multiplication, how common is this?

asked Mar 8, 2015 at 12:06

4 votes

0 answers

1k views

Almost everywhere convergence of convolution with mollifiers

asked Jan 8, 2015 at 14:22

4 votes

1 answer

513 views

Directed limits of topological spaces and embeddings

asked Feb 2, 2015 at 13:49

4 votes

2 answers

87 views

Internally Inhabited Object Which Is Not Externally Inhabited

asked Jul 15, 2023 at 3:11

4 votes

1 answer

129 views

Russian(?) Post Office Problem

asked Apr 10, 2023 at 10:42

4 votes

1 answer

194 views

Idea Of Ends On nLab

asked Oct 2, 2019 at 11:30

4 votes

1 answer

149 views

Which Subsets Of $\mathbf{R}^n$ Make Sense To Define Differentiable Functions On Them?

asked Jul 15, 2022 at 22:24

3 votes

0 answers

226 views

Fresnel-Kirchhoff’s Diffraction Formula Vs. Angular Spectrum Method

asked Jul 16, 2022 at 22:11

3 votes

1 answer

128 views

Is Invariance Of Domain (Fundamentally) Equivalent To Every Continuous Bijection $\mathbf{R}^n\to\mathbf{R}^n$ Is Open?

asked Jul 24, 2022 at 14:20

3 votes

0 answers

68 views

Stable Planar Graphs Under Hooke's Law

asked Aug 20, 2022 at 8:12

3 votes

0 answers

121 views

Infinitesimal Cellular Automaton

asked Mar 28, 2019 at 19:21

Stack Exchange Network

146 Questions

Show That A Particle In A Bounded Force Field Can Reach Any Point In Fixed Time Span

Questions on color theory, expressed in linear algebra

Set of diameter $\le 1$ contained in set of constant width $1$

Topology on the space of test functions

Topology From Sequences

Set Of Density Points

Axiomatic approach to the definition of variance

Good reference for string diagrams

When does pointwise convergence on compact space imply uniform convergence?

Duals In The Category Of Sets

Rotationally Invariant PDE Operators

Is The Power Object Functor Faithful?

Bochner integral vs regulated integral

Tensor product notation for $(x,y)\mapsto f(x)g(y)$

Fundamental proof of Taylor's theorem using little-o notations

Godel's Diagonalization Lemma As Application Of Lawvere's Fixed Point Theorem

Explanation on the symmetry between identity axiom and cut rule

Existence of measurable set $A\subseteq{\mathbb R}$ which is locally uncountable and so is its complement

Getting a matrix lexicographically sorted along both directions

$\times$ as symbol for multiplication, how common is this?

Almost everywhere convergence of convolution with mollifiers

Directed limits of topological spaces and embeddings

Internally Inhabited Object Which Is Not Externally Inhabited

Russian(?) Post Office Problem

Idea Of Ends On nLab

Which Subsets Of $\mathbf{R}^n$ Make Sense To Define Differentiable Functions On Them?

Fresnel-Kirchhoff’s Diffraction Formula Vs. Angular Spectrum Method

Is Invariance Of Domain (Fundamentally) Equivalent To Every Continuous Bijection $\mathbf{R}^n\to\mathbf{R}^n$ Is Open?

Stable Planar Graphs Under Hooke's Law

Infinitesimal Cellular Automaton