User Zurab Silagadze

8

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Rachinsky quintets

nt.number-theory

Jul 1 '17 at 2:42 Wlod AA 2,767

12

28

votes

5

answers

4k

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How did Ramanujan discover this identity?

nt.number-theory polynomials

Jul 27 '19 at 15:34 Pietro Majer 47.8k

6

24

votes

2

answers

1k

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Interesting integral

ca.classical-analysis-and-odes integration

May 9 '19 at 18:27 user82588 1

9

22

votes

0

answers

533

views

A multiple integral

ca.classical-analysis-and-odes real-analysis integration

Jun 20 '14 at 11:15 Community♦ 1

5

21

votes

2

answers

2k

views

New binomial coefficient identity?

reference-request sequences-and-series binomial-coefficients

Oct 3 '18 at 1:52 T. Amdeberhan 31.2k

2

20

votes

2

answers

1k

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The origin of the Ramanujan's $\pi^4\approx 2143/22$ identity

nt.number-theory real-analysis

Dec 27 at 19:43 mossy84 41

4

14

votes

0

answers

259

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Surprising approximate identity

ca.classical-analysis-and-odes

Sep 24 '15 at 12:44 Community♦ 1

7

13

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0

answers

713

views

Multiple Integral (American Mathematical Monthly problem 11621 and its generalization)

ca.classical-analysis-and-odes

Aug 10 '15 at 20:34 Wolfgang 11.7k

3

12

votes

0

answers

811

views

Geometric meaning of the black hole horizon

reference-request dg.differential-geometry general-relativity

Nov 7 '15 at 17:30 Community♦ 1

6

12

votes

0

answers

629

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Cohomology and impossible ﬁgures

reference-request at.algebraic-topology cohomology

Feb 9 '14 at 17:20 Community♦ 1

3

11

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3

answers

715

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An integral related to the Euler gamma function

ca.classical-analysis-and-odes open-problems

Jun 23 '19 at 5:33 user64494 3,055

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10

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0

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285

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Is this elliptic integral identity known?

reference-request ca.classical-analysis-and-odes elliptic-functions

Dec 15 at 19:14 Zurab Silagadze 14.9k

4

10

votes

2

answers

888

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Kummer's quartic surface and the Dirac operator

ag.algebraic-geometry reference-request mp.mathematical-physics

Sep 30 '17 at 1:56 j.c. 12.6k

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1

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988

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A curious property of Ramanujan's function $\tau(n)$

nt.number-theory modular-forms monster

Sep 26 '16 at 5:00 Community♦ 1

1

10

votes

1

answer

306

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Calculation of the integral related to the gravitational shock wave

ca.classical-analysis-and-odes integration

Feb 13 '16 at 13:37 Zurab Silagadze 14.9k

4

10

votes

1

answer

817

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Ramanujan's problem 754 still open?

reference-request ca.classical-analysis-and-odes open-problems

Feb 17 '14 at 23:15 Community♦ 1

1

9

votes

1

answer

361

views

Nonlinear oscillator with velocity-dependent frequency

mp.mathematical-physics differential-equations

Jan 21 '19 at 21:39 Rodrigo de Azevedo 2,062

1

9

votes

0

answers

345

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English translation of Wilhelm Killing's 1889 paper

reference-request ho.history-overview translation

Oct 4 '18 at 6:34 Martin Sleziak 4,257

2

9

votes

0

answers

717

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Pi in collisions

nt.number-theory

Mar 14 '17 at 6:30 Zurab Silagadze 14.9k

3

8

votes

2

answers

470

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A recurrence relation for $\zeta(2n)$ - reference request

reference-request riemann-zeta-function

Jul 27 '18 at 12:57 Zurab Silagadze 14.9k

4

8

votes

2

answers

716

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Interesting triple integral

ca.classical-analysis-and-odes integration

May 20 '15 at 19:22 Community♦ 1

3

7

votes

1

answer

387

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Basel problem and inversive geometry

nt.number-theory integration

Jan 8 '19 at 6:56 Vivek Kaushik 131

3

7

votes

0

answers

461

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The dogma of the natural numbers in physics

reference-request mp.mathematical-physics

May 20 '14 at 8:57 Zurab Silagadze 14.9k

6

votes

2

answers

221

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Congruence equation for Apery numbers

nt.number-theory congruences

Apr 15 '18 at 10:42 Ofir Gorodetsky 7,083

1

6

votes

2

answers

198

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Choice of branch cuts in logarithmic integral

ca.classical-analysis-and-odes integration special-functions

May 19 '17 at 17:45 user64494 3,055

1

6

votes

1

answer

606

views

Аrе thеsе integrals known?

reference-request integration special-functions

Nov 22 '16 at 7:32 Zurab Silagadze 14.9k

1

6

votes

0

answers

582

views

Why did Poincare's work on relativity remain virtually unnoticed for a long time? [closed]

ho.history-overview

Oct 4 '16 at 2:56 Zurab Silagadze 14.9k

6

votes

2

answers

292

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Conjectured congruence for the Apery numbers

nt.number-theory reference-request

May 30 '14 at 7:41 Lucia 40.4k

3

6

votes

0

answers

132

views

Grunsky-Motzkin-Schoenberg formula

reference-request cv.complex-variables quaternions octonions

May 15 '14 at 4:30 Zurab Silagadze 14.9k

2

6

votes

2

answers

252

views

Collision polynomials

nt.number-theory polynomials factorization

Jul 25 '13 at 13:11 Community♦ 1

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70 Questions

Rachinsky quintets

How did Ramanujan discover this identity?

Interesting integral

A multiple integral

New binomial coefficient identity?

The origin of the Ramanujan's $\pi^4\approx 2143/22$ identity

Surprising approximate identity

Multiple Integral (American Mathematical Monthly problem 11621 and its generalization)

Geometric meaning of the black hole horizon

Cohomology and impossible ﬁgures

An integral related to the Euler gamma function

Is this elliptic integral identity known?

Kummer's quartic surface and the Dirac operator

A curious property of Ramanujan's function $\tau(n)$

Calculation of the integral related to the gravitational shock wave

Ramanujan's problem 754 still open?

Nonlinear oscillator with velocity-dependent frequency

English translation of Wilhelm Killing's 1889 paper

Pi in collisions

A recurrence relation for $\zeta(2n)$ - reference request

Interesting triple integral

Basel problem and inversive geometry

The dogma of the natural numbers in physics

Congruence equation for Apery numbers

Choice of branch cuts in logarithmic integral

Аrе thеsе integrals known?

Why did Poincare's work on relativity remain virtually unnoticed for a long time? [closed]

Conjectured congruence for the Apery numbers

Grunsky-Motzkin-Schoenberg formula

Collision polynomials