Zurab Silagadze's user avatar
Zurab Silagadze's user avatar
Zurab Silagadze's user avatar
Zurab Silagadze
  • Member for 11 years
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49 votes
2 answers
3k views

Rachinsky quintets

37 votes
5 answers
4k views

How did Ramanujan discover this identity?

25 votes
2 answers
2k views

Interesting integral

22 votes
3 answers
2k views

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

21 votes
2 answers
3k views

New binomial coefficient identity?

21 votes
0 answers
633 views

A multiple integral

15 votes
0 answers
293 views

Surprising approximate identity

15 votes
1 answer
2k views

How did Fermi calculate this integral?

13 votes
0 answers
865 views

Geometric meaning of the black hole horizon

12 votes
0 answers
725 views

Cohomology and impossible figures

12 votes
0 answers
814 views

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

11 votes
3 answers
905 views

An integral related to the Euler gamma function

11 votes
1 answer
1k views

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

11 votes
1 answer
443 views

Calculation of the integral related to the gravitational shock wave

11 votes
1 answer
608 views

English translation of Wilhelm Killing's 1889 paper

10 votes
0 answers
337 views

Is this elliptic integral identity known?

10 votes
1 answer
931 views

Ramanujan's problem 754 still open?

10 votes
2 answers
1k views

Kummer's quartic surface and the Dirac operator

9 votes
1 answer
380 views

Nonlinear oscillator with velocity-dependent frequency

9 votes
0 answers
775 views

Pi in collisions

8 votes
2 answers
918 views

Interesting triple integral

8 votes
2 answers
776 views

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

7 votes
1 answer
549 views

Basel problem and inversive geometry

7 votes
0 answers
494 views

The dogma of the natural numbers in physics

7 votes
2 answers
2k views

The source of the Integral

7 votes
1 answer
556 views

Infinite series for $1/\pi$. Is it known?

6 votes
2 answers
306 views

Conjectured congruence for the Apery numbers

6 votes
2 answers
240 views

Congruence equation for Apery numbers

6 votes
0 answers
153 views

Grunsky-Motzkin-Schoenberg formula

6 votes
2 answers
306 views

Collision polynomials