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Vassilis Parassidis

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27 Questions

Views Newest Activity Votes

votes

answer

views

Sum of three primes equal to a prime [closed]

number-theory prime-numbers

Jul 3 '15 at 17:57 mich95 7,260

votes

answer

167

views

Pythagorian quadruples

number-theory diophantine-equations

Jul 7 '12 at 20:34 Community♦ 1

votes

answers

445

views

Are there infinitely many primes of the form $6^{2n}+1$ or only finitely many?

number-theory prime-numbers open-problem

Dec 30 '11 at 21:10 Will Jagy 112k

votes

answers

383

views

$\pi$ polynomials whose real zeros approximate $\pi$

polynomials approximation pi

Apr 16 '16 at 6:48 Jaume Oliver Lafont 4,045

votes

answers

views

zeta of three, question about closed form

sequences-and-series riemann-zeta

Feb 10 '12 at 3:48 Gerry Myerson 156k

votes

answers

257

views

Quadratic equations

polynomials diophantine-equations

Sep 16 '13 at 2:09 Vassilis Parassidis 615

votes

answers

views

Four equilateral triangles equal to one equilateral triangle

geometry number-theory

Aug 3 '13 at 2:28 Anthony Carapetis 28.6k

votes

answers

103

views

Constant term of zeta binomials

zeta-functions

Feb 19 '12 at 0:29 Vassilis Parassidis 615

vote

answer

views

Combinatorics and Latin squares

combinatorics latin-square

Sep 9 at 0:33 Vassilis Parassidis 615

vote

answers

258

views

The Diophantine equations $X^3=DY^3+A^3$

number-theory diophantine-equations

Mar 12 '14 at 14:03 individ 3,570

vote

answers

157

views

Diophantine equation $x^3=a^2+b^2+c^2$

diophantine-equations

Aug 12 '13 at 0:21 Vassilis Parassidis 615

vote

answer

248

views

Zeta function and fractions of sums of natural numbers

sequences-and-series number-theory

Dec 9 '12 at 3:55 Antonio Vargas 22.4k

vote

answers

126

views

Permutations within a specific boundary

combinatorics number-theory

Nov 4 '12 at 7:20 Vassilis Parassidis 615

vote

answer

255

views

Using $\pi$ to calculate square roots

algebra-precalculus

Mar 14 '12 at 18:00 Robert Israel 355k

vote

answers

216

views

Series involving zeta functions

zeta-functions

Feb 18 '12 at 5:33 anon 75.5k

vote

answer

180

views

Intersection of two rhombuses

geometry

Feb 5 '12 at 3:49 Isaac 32.5k

vote

answer

131

views

Rational zeros of polynomials

polynomials

Dec 25 '11 at 18:56 Zev Chonoles 115k

votes

answer

views

Equations and primes

number-theory

Aug 15 '13 at 22:31 Daniel Robert-Nicoud 24.5k

votes

answers

159

views

Minimum or maximum ratio for attacking RSA

number-theory

Feb 16 '13 at 18:45 Community♦ 1

votes

answer

297

views

Special sequences of fractions

sequences-and-series number-theory

Dec 23 '12 at 1:04 Vassilis Parassidis 615

votes

answers

views

Infinite sum of fractions

number-theory

Dec 15 '12 at 3:22 Pedro Tamaroff♦ 106k

votes

answer

236

views

A new periodic tiling of the plane

tiling

Jul 2 '12 at 0:40 Gerry Myerson 156k

votes

answer

views

An original series from zeta function.

sequences-and-series

Feb 19 '12 at 19:38 mrf 38.6k

votes

answers

153

views

Prime of the form $4x+1$ within two bounds

number-theory

Nov 23 '11 at 7:55 Greg Martin 41.2k

-1

votes

answer

views

Primes expressible as $\frac{4k^3}{(k+m)^3}+\frac{6k^2}{(k+m)^2}+\frac{4k}{(k+m)}+1$ for $k,m\geq1$

prime-numbers

Dec 17 '11 at 19:55 N. S. 112k

-4

votes

answers

452

views

Nonagons with integer sides [closed]

geometry

Feb 7 '12 at 13:34 Christian Blatter 186k

-5

votes

answer

213

views

Sequences and lottery tickets

combinatorics number-theory

Nov 26 '12 at 1:59 Zach 11

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27 Questions

Sum of three primes equal to a prime [closed]

Pythagorian quadruples

Are there infinitely many primes of the form $6^{2n}+1$ or only finitely many?

$\pi$ polynomials whose real zeros approximate $\pi$

zeta of three, question about closed form

Quadratic equations

Four equilateral triangles equal to one equilateral triangle

Constant term of zeta binomials

Combinatorics and Latin squares

The Diophantine equations $X^3=DY^3+A^3$

Diophantine equation $x^3=a^2+b^2+c^2$

Zeta function and fractions of sums of natural numbers

Permutations within a specific boundary

Using $\pi$ to calculate square roots

Series involving zeta functions

Intersection of two rhombuses

Rational zeros of polynomials

Equations and primes

Minimum or maximum ratio for attacking RSA

Special sequences of fractions

Infinite sum of fractions

A new periodic tiling of the plane

An original series from zeta function.

Prime of the form $4x+1$ within two bounds

Primes expressible as $\frac{4k^3}{(k+m)^3}+\frac{6k^2}{(k+m)^2}+\frac{4k}{(k+m)}+1$ for $k,m\geq1$

Nonagons with integer sides [closed]

Sequences and lottery tickets