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Bogdan Grechuk
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Do there exist integers $x$ and $y$ such that $\frac{x^3-x^2-2 x+1}{y^2-4}$ is an integer?

In other words, can any integer representable as $x^3-x^2-2 x+1$ have any divisor representable as $y^2-4$?

This is the simplest non-trivial example of my earlier question Integer points of rational function in 2 variables .

Do there exist integers $x$ and $y$ such that $\frac{x^3-x^2-2 x+1}{y^2-4}$ is an integer?

In other words, can any integer representable as $x^3-x^2-2 x+1$ have any divisor representable as $y^2-4$?

Do there exist integers $x$ and $y$ such that $\frac{x^3-x^2-2 x+1}{y^2-4}$ is an integer?

In other words, can any integer representable as $x^3-x^2-2 x+1$ have any divisor representable as $y^2-4$?

This is the simplest non-trivial example of my earlier question Integer points of rational function in 2 variables .

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Bogdan Grechuk
  • 7.2k
  • 1
  • 29
  • 54

Can $(x^3$y^2-4$ be a divisor of $x^3-x^2-2 x+1)/(y^2-4)$ be an integerx+1$?

Source Link
Bogdan Grechuk
  • 7.2k
  • 1
  • 29
  • 54

Can $(x^3-x^2-2 x+1)/(y^2-4)$ be an integer?

Do there exist integers $x$ and $y$ such that $\frac{x^3-x^2-2 x+1}{y^2-4}$ is an integer?

In other words, can any integer representable as $x^3-x^2-2 x+1$ have any divisor representable as $y^2-4$?