Displaying similar documents to “On a diophantine equation”

Diophantine equation q n - 1 q - 1 = y for four prime divisors of y - 1

Zdeněk Polický (2005)

Commentationes Mathematicae Universitatis Carolinae

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In this paper the special diophantine equation q n - 1 q - 1 = y with integer coefficients is discussed and integer solutions are sought. This equation is solved completely just for four prime divisors of y - 1 .

Diophantine Undecidability of Holomorphy Rings of Function Fields of Characteristic 0

Laurent Moret-Bailly, Alexandra Shlapentokh (2009)

Annales de l’institut Fourier

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Let K be a one-variable function field over a field of constants of characteristic 0. Let R be a holomorphy subring of K , not equal to K . We prove the following undecidability results for R : if K is recursive, then Hilbert’s Tenth Problem is undecidable in R . In general, there exist x 1 , ... , x n R such that there is no algorithm to tell whether a polynomial equation with coefficients in ( x 1 , ... , x n ) has solutions in R .

On sets S.

P. Laborde (1970)

Gaceta Matemática

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