User Dominik - Mathematics Stack Exchange

bio	website
	location
	age
visits	member for	6 months
	seen	2 days ago
stats	profile views	180

	2,306 reputation	bio	website		visits	member for	6 months
226 badges		location			seen	2 days ago

9

22

votes

3

answers

455

views

Two squares in a box.

euclidean-geometry packing-problem

dec 9 at 11:12 Dominik 2,306

8

17

votes

3

answers

273

views

Why should “graph theory be part of the education of every student of mathematics”?

apr 26 at 23:56 Artem 2,558

2

14

votes

2

answers

281

views

Is every group the automorphism group of a group?

group-theory examples-counterexamples morphism

mar 9 at 17:27 Yimin 1,521

5

13

votes

4

answers

115

views

What are the important theorems in the theory of dynamical systems?

dynamical-systems

may 10 at 22:53 Paul Siegel 2,180

5

12

votes

2

answers

311

views

Is Serge Lang's Algebra still worth reading?

abstract-algebra reference-request

apr 25 at 7:19 Martin Sleziak 20.3k

3

11

votes

3

answers

100

views

Are there interesting rings without unity?

soft-question ring-theory examples-counterexamples

may 5 at 23:10 Keenan Kidwell 6,868

5

11

votes

4

answers

278

views

Counterexamples in complex analysis

complex-analysis big-list examples-counterexamples

mar 22 at 11:37 Ashot 1,076

3

10

votes

2

answers

201

views

Characteristic polynomial of a matrix with zeros on its diagonal

linear-algebra matrices

dec 23 at 8:55 user1551 16.8k

2

9

votes

1

answer

115

views

Universal property characterizing $\Bbb R$

category-theory examples-counterexamples

apr 11 at 15:51 Martin Brandenburg 23.1k

6

9

votes

2

answers

205

views

Area enclosed by 2-dimensional random curve

stochastic-processes brownian-motion stochastic-integrals stochastic-analysis

mar 6 at 10:51 Did 103k

1

8

votes

2

answers

122

views

Why is there no simpler form of a matrix than the Jordan or Frobenius normal form?

linear-algebra matrices

apr 10 at 9:49 azimut 5,588

1

8

votes

2

answers

211

views

Does every ring with unity arise as an endomorphism ring?

ring-theory abelian-groups

mar 9 at 17:25 Yimin 1,521

1

7

votes

3

answers

241

views

Presentation of Rubik's Cube group

group-theory finite-groups rubiks-cube

may 21 at 6:28 user78729 11

2

7

votes

0

answers

118

views

Why did Arnold say: “Mathematics is divided into cryptography, hydrodynamics and celestial mechanics.” [closed]

soft-question math-history

apr 7 at 22:19 Alexander Gruber♦ 15.2k

7

votes

1

answer

117

views

Maps of $\mathbb{R}^3$ preserving the cross product

geometry analytic-geometry functional-equations cross-product

jan 27 at 4:28 JohnD 3,490

3

7

votes

1

answer

95

views

Bound on the number of p-groups for fixed exponent

group-theory finite-groups p-groups

dec 23 at 17:54 Dominik 2,306

2

6

votes

2

answers

62

views

Good book on topological group theory?

reference-request topological-groups harmonic-analysis

may 21 at 15:32 MichaelNgelo 190

2

6

votes

0

answers

96

views

How confident can we be about the validity of the classification of finite simple groups?

group-theory finite-groups simple-groups

apr 1 at 23:35 Dominik 2,306

1

6

votes

3

answers

52

views

Exact sequence involving the nabla operator

functional-analysis differential-geometry multivariable-calculus homological-algebra

jan 31 at 21:41 Muphrid 3,464

2

5

votes

2

answers

119

views

Are $\Bbb R$ and $\Bbb C$ the only connected, locally compact fields?

general-topology field-theory topological-groups

apr 12 at 17:39 Lubin 6,041

1

5

votes

2

answers

242

views

How to solve integrals like Ramanujan

reference-request integration

dec 18 at 23:26 John Wordsworth 9,343

2

4

votes

2

answers

80

views

Good book on representation theory after reading Rotman

group-theory reference-request representation-theory

may 6 at 21:48 Nicky Hekster 2,677

4

votes

0

answers

80

views

The mathematical heritage of Lewis Carroll

math-history big-list

apr 1 at 17:28 Dominik 2,306

1

4

votes

3

answers

80

views

Dissecting an equilateral triangle into equilateral triangles of pairwise different sizes

combinatorics recreational-mathematics discrete-geometry tessellations

mar 11 at 1:13 coffeemath 6,616

2

3

votes

1

answer

69

views

Groups with transitive automorphisms

group-theory finite-groups

feb 8 at 15:03 m. k. 7,322

3

votes

0

answers

31

views

Differentiable function which is nowhere continuously differentiable [duplicate]

real-analysis analysis continuity examples-counterexamples

jan 28 at 11:50 Dominik 2,306

1

3

votes

1

answer

84

views

Limit of a probability regarding a random walk

probability sequences-and-series stochastic-processes markov-chains markov-process

nov 27 at 0:51 joriki 92.8k

2

votes

2

answers

61

views

Surjectivity of $G \rightarrow G/N_1 \times G/N_2$.

group-theory

feb 8 at 13:18 Babak S. 28.2k

2

votes

0

answers

70

views

Theorem's relying on algebraic closures

field-theory axiom-of-choice

dec 7 at 17:03 Rankeya 4,224

2

votes

1

answer

86

views

Analytical function taking rationals to rationals.

real-analysis elementary-number-theory power-series rational-numbers rational-functions

dec 5 at 23:02 Robert Israel 86.5k

Dominik

39 Questions