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Prime numbers, diophantine equations, diophantine approximations, analytic or algebraic number theory, arithmetic geometry, Galois theory, transcendental number theory, continued fractions

9 votes
1 answer
488 views

Enquiry on a Diophantine problem

Let $x,y, z$ be relatively prime integers with $xyz \neq 0$. Suppose that $$x^{m/n} + y^{m/n} = z^{m/n}$$ where $m,n$ are relatively prime integers with $mn \neq 0$. Does it necessarily follow tha …
NumbD's user avatar
  • 141
5 votes
2 answers
417 views

On the Diophantine equation $x^{4}+y^{4}=z^p$

Do there exist integers $x,y,z$ with $xyz\neq 0$, such that $$x^4 + y^4 = z^p$$ where $p\geq 5$ is some prime ? If yes, are there infinitely many of them ? And if there exists infinitely many of th …
NumbD's user avatar
  • 141