User Wolfgang

1 vote

0 answers

72 views

How to prove this peculiar relationship between minimal polynomials of Ramanujan class invariants?

asked Apr 8 at 14:25

7 votes

1 answer

1k views

Why are all these families of polynomials finally log-concave?

asked Mar 28, 2013 at 10:34

6 votes

1 answer

621 views

Are these continued fractions for the "tails" of $\zeta(3)$ and of the Catalan constant known?

asked Jun 18, 2022 at 20:47

4 votes

1 answer

105 views

Are there decompositions of $K_{16}$ by certain 3-regular graphs?

asked Jul 10, 2023 at 19:36

0 votes

0 answers

135 views

Chains in tilings with the aperiodic monotile

asked Jun 13, 2023 at 19:27

6 votes

2 answers

623 views

Is there an L-system for aperiodic tilings of the plane with the "hat" monotile?

asked Apr 10, 2023 at 15:07

13 votes

2 answers

3k views

How many vertices/edges/faces at most for a convex polyhedron that tiles space?

asked Jan 18, 2012 at 22:38

5 votes

2 answers

371 views

What is known about tiling a rectangle in an irreducible way by smaller rectangles?

asked Jul 12, 2014 at 17:06

2 votes

0 answers

69 views

How to extend this sum involving generalized harmonic numbers?

asked Aug 15, 2022 at 20:10

4 votes

0 answers

1k views

Cubic polynomials with "nice" roots, which can be expressed by trig functions of rational angles

asked Jan 22, 2012 at 21:04

24 votes

1 answer

2k views

Why these surprising proportionalities of integrals involving odd zeta values?

asked Apr 22, 2019 at 15:42

15 votes

2 answers

1k views

Definitions of determinant by unique features

asked Jun 28, 2022 at 9:57

34 votes

2 answers

1k views

Representations of $\zeta(3)$ as continued fractions involving cubic polynomials

asked Feb 11, 2019 at 15:38

3 votes

0 answers

93 views

Infinite families of continued fractions for the Catalan constant

asked Jun 6, 2022 at 11:20

13 votes

2 answers

722 views

How to prove that $\int _0^\infty\frac{\text{arcsinh}^nx}{x^m}dx$ is a rational combination of zeta values?

asked Feb 23, 2016 at 20:11

6 votes

2 answers

303 views

convex polytopes with many faces and edges but few cells and vertices

asked Jan 20, 2012 at 18:32

4 votes

1 answer

253 views

Why do these polynomials split almost in the middle?

asked Mar 10, 2022 at 18:22

3 votes

0 answers

142 views

Flat polynomials with factors of big height

asked Feb 11, 2022 at 21:19

6 votes

2 answers

314 views

Is there a combinatorial interpretation of this array in terms of $S_{2n+1}$?

asked Dec 27, 2021 at 21:30

29 votes

2 answers

2k views

Is there a closed form for $\int_0^\infty\frac{\tanh^3(x)}{x^2}dx$?

asked Jun 6, 2017 at 16:29

6 votes

0 answers

260 views

A kind of reflection formula for the logarithmic derivative of the zeta function

asked Nov 28, 2021 at 17:59

2 votes

1 answer

78 views

What is the average component size of a coloring?

asked Oct 27, 2021 at 20:00

6 votes

3 answers

420 views

Which constants are ambivalent and why?

asked Dec 25, 2017 at 9:31

-1 votes

1 answer

141 views

A pathological (?) function involving powers

asked Aug 5, 2021 at 19:50

5 votes

1 answer

190 views

Are there orthogonal Cauchy-like matrices with rational entries for any given size?

asked Aug 5, 2020 at 16:57

5 votes

0 answers

125 views

What is known about this conjectured symmetry in the generalized Radon-Hurwitz numbers?

asked Jan 15, 2021 at 16:45

7 votes

2 answers

1k views

Duality of eta product identities: a new idea?

asked Mar 25, 2012 at 0:07

7 votes

1 answer

335 views

Under which constraints are there only finite numbers of irreducible eta product identities?

asked Feb 12, 2014 at 16:47

14 votes

6 answers

1k views

Euler's divergent series sum n!*(-1)^n: what is known about the resulting constant?

asked Jan 14, 2012 at 18:13

10 votes

2 answers

759 views

Graphs with many edges avoided by Hamiltonian cycles

asked Dec 20, 2013 at 15:19

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137 Questions

How to prove this peculiar relationship between minimal polynomials of Ramanujan class invariants?

Why are all these families of polynomials finally log-concave?

Are these continued fractions for the "tails" of $\zeta(3)$ and of the Catalan constant known?

Are there decompositions of $K_{16}$ by certain 3-regular graphs?

Chains in tilings with the aperiodic monotile

Is there an L-system for aperiodic tilings of the plane with the "hat" monotile?

How many vertices/edges/faces at most for a convex polyhedron that tiles space?

What is known about tiling a rectangle in an irreducible way by smaller rectangles?

How to extend this sum involving generalized harmonic numbers?

Cubic polynomials with "nice" roots, which can be expressed by trig functions of rational angles

Why these surprising proportionalities of integrals involving odd zeta values?

Definitions of determinant by unique features

Representations of $\zeta(3)$ as continued fractions involving cubic polynomials

Infinite families of continued fractions for the Catalan constant

How to prove that $\int _0^\infty\frac{\text{arcsinh}^nx}{x^m}dx$ is a rational combination of zeta values?

convex polytopes with many faces and edges but few cells and vertices

Why do these polynomials split almost in the middle?

Flat polynomials with factors of big height

Is there a combinatorial interpretation of this array in terms of $S_{2n+1}$?

Is there a closed form for $\int_0^\infty\frac{\tanh^3(x)}{x^2}dx$?

A kind of reflection formula for the logarithmic derivative of the zeta function

What is the average component size of a coloring?

Which constants are ambivalent and why?

A pathological (?) function involving powers

Are there orthogonal Cauchy-like matrices with rational entries for any given size?

What is known about this conjectured symmetry in the generalized Radon-Hurwitz numbers?

Duality of eta product identities: a new idea?

Under which constraints are there only finite numbers of irreducible eta product identities?

Euler's divergent series sum n!*(-1)^n: what is known about the resulting constant?

Graphs with many edges avoided by Hamiltonian cycles