User Nik Weaver

1 vote

1 answer

79 views

Topological modules over a locally compact ring

asked Sep 27, 2023 at 13:28

11 votes

2 answers

749 views

Are topological PID's Noetherian?

asked Sep 19, 2023 at 12:11

16 votes

6 answers

2k views

Finding closed subspaces whose sum isn't closed

asked Dec 21, 2022 at 3:15

6 votes

0 answers

177 views

Ordinal strength of iterated truth theories

asked Sep 8, 2021 at 17:15

23 votes

9 answers

2k views

Nonseparable counterexamples in analysis

asked May 10, 2021 at 15:59

34 votes

8 answers

4k views

Uncountable counterexamples in algebra

asked May 9, 2021 at 19:47

6 votes

2 answers

715 views

Gauge integral versus path integral

asked Sep 18, 2018 at 4:34

13 votes

2 answers

356 views

Connected incomparability graph

asked Dec 9, 2018 at 20:20

12 votes

2 answers

752 views

Term for a metric space for which the triangle inequality is strict?

asked Feb 28, 2016 at 16:13

3 votes

1 answer

674 views

Is this consequence of the invariant subspace problem known?

asked Jan 30, 2019 at 19:59

10 votes

0 answers

250 views

What are these matrices called?

asked Jan 11, 2019 at 15:06

4 votes

1 answer

165 views

A generalization of invariant and coinvariant subspaces

asked Dec 26, 2018 at 15:07

5 votes

1 answer

167 views

Domination numbers of infinite graphs

asked Jul 16, 2018 at 2:35

21 votes

6 answers

2k views

What are the possible eigenvalues of these matrices?

asked Mar 5, 2018 at 14:50

12 votes

2 answers

1k views

Another $2 \times 2$ matrix question

asked Jan 22, 2018 at 20:46

15 votes

1 answer

1k views

Existence of double eigenvalue

asked Jan 1, 2018 at 16:18

20 votes

3 answers

1k views

Simultaneous "orthonormalization" in $\mathbb{C}^4$

asked Dec 12, 2017 at 3:44

10 votes

1 answer

618 views

$2 \times 2$ matrix question

asked Dec 27, 2017 at 14:34

21 votes

3 answers

1k views

Separating pure states on the $2\times 2$ matrix algebra

asked Jul 28, 2015 at 4:42

11 votes

1 answer

411 views

Shift invariant subspaces of $l^1$

asked Jun 30, 2017 at 3:15

7 votes

1 answer

571 views

Weak* continuity of positive parts, again

asked May 21, 2016 at 11:59

24 votes

2 answers

2k views

Unique predual of a Banach space

asked Nov 1, 2016 at 16:40

10 votes

1 answer

711 views

Real-valued measurable cardinals

asked Jun 1, 2016 at 15:23

15 votes

0 answers

610 views

Countably decomposable von Neumann algebras

asked Jul 5, 2016 at 12:43

6 votes

1 answer

257 views

bounding derivative of a sequence

asked Jun 7, 2016 at 12:05

10 votes

2 answers

259 views

Weak* continuity of positive parts

asked May 20, 2016 at 19:36

37 votes

1 answer

2k views

What is the meaning of this analogy between lattices and topological spaces?

asked May 12, 2016 at 16:33

22 votes

1 answer

2k views

Who proved that $l^1$ and $L^1[0,1]$ are not isomorphic?

asked May 3, 2016 at 17:04

8 votes

2 answers

357 views

$l^1$ versus $l^2$

asked Apr 18, 2016 at 12:09

8 votes

1 answer

224 views

Non-isomorphic graphs with isomorphic edge vectors

asked Mar 8, 2016 at 16:04

Stack Exchange Network

40 Questions

Topological modules over a locally compact ring

Are topological PID's Noetherian?

Finding closed subspaces whose sum isn't closed

Ordinal strength of iterated truth theories

Nonseparable counterexamples in analysis

Uncountable counterexamples in algebra

Gauge integral versus path integral

Connected incomparability graph

Term for a metric space for which the triangle inequality is strict?

Is this consequence of the invariant subspace problem known?

What are these matrices called?

A generalization of invariant and coinvariant subspaces

Domination numbers of infinite graphs

What are the possible eigenvalues of these matrices?

Another $2 \times 2$ matrix question

Existence of double eigenvalue

Simultaneous "orthonormalization" in $\mathbb{C}^4$

$2 \times 2$ matrix question

Separating pure states on the $2\times 2$ matrix algebra

Shift invariant subspaces of $l^1$

Weak* continuity of positive parts, again

Unique predual of a Banach space

Real-valued measurable cardinals

Countably decomposable von Neumann algebras

bounding derivative of a sequence

Weak* continuity of positive parts

What is the meaning of this analogy between lattices and topological spaces?

Who proved that $l^1$ and $L^1[0,1]$ are not isomorphic?

$l^1$ versus $l^2$

Non-isomorphic graphs with isomorphic edge vectors