List questions from diophantine-equations

Published on 09 Apr 2026 - 13:08

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Solve $x+y+z = x^3 + y^3 + z^3 = 8$ in $\mathbb{Z}$

Published on 16 Apr 2026 - 12:56

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Why use the non-exclusive or sign in equations?

Published on 15 Apr 2026 - 11:18

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The number of solutions to $\frac{1}x+\frac{1}y+\frac{1}z=\frac{3}n,x,y,z\in\mathbb N$

Published on 16 Apr 2026 - 1:17

150

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Parametric Equation solving over integers

Published on 15 Apr 2026 - 6:14

110

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finding zeroes of a quadratic form

Published on 12 Apr 2026 - 13:33

865

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Is the quartic diophantine equation $a^4+nb^4 = c^4+nd^4$ solvable for any integer $n$?

Published on 14 Apr 2026 - 16:21

414

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Finding a prime number $p$ and $x, y, z\in \mathbb N$ such that $x^p+y^p=p^z$

Published on 15 Apr 2026 - 19:04

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Is "iff" the same as equality if each member is a predicate?

Published on 13 Apr 2026 - 21:32

1.1k

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Pythagorean triples with additional parameters

Published on 09 Apr 2026 - 18:59

159

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Help solving a partial differential equation by separation of variables

Published on 10 Apr 2026 - 3:37

1.2k

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Solutions of $x^2 + 7y^2 = 2^n$ where $x$ and $y$ are odd numbers

Published on 15 Apr 2026 - 2:26

146

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Generate a formula for x in my case

Published on 12 Apr 2026 - 14:38

181

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Trying to prove that a triangular number equation has no solutions.

Published on 11 Apr 2026 - 18:43

1.6k

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On Bachet's Duplication Formula and the number $-432$

Published on 14 Apr 2026 - 19:12

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Math contest proof problem fractions

Solve $x+y+z = x^3 + y^3 + z^3 = 8$ in $\mathbb{Z}$

Why use the non-exclusive or sign in equations?

The number of solutions to $\frac{1}x+\frac{1}y+\frac{1}z=\frac{3}n,x,y,z\in\mathbb N$

Parametric Equation solving over integers

finding zeroes of a quadratic form

Is the quartic diophantine equation $a^4+nb^4 = c^4+nd^4$ solvable for any integer $n$?

Finding a prime number $p$ and $x, y, z\in \mathbb N$ such that $x^p+y^p=p^z$

Is "iff" the same as equality if each member is a predicate?

Pythagorean triples with additional parameters

Help solving a partial differential equation by separation of variables

Solutions of $x^2 + 7y^2 = 2^n$ where $x$ and $y$ are odd numbers

Generate a formula for x in my case

Trying to prove that a triangular number equation has no solutions.

On Bachet's Duplication Formula and the number $-432$

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