D(-1)-triples of the form {;1, b, c}; and their extensibility in the ring Z[√-t], t > 0 (CROSBI ID 622622)
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Podaci o odgovornosti
Soldo, Ivan
engleski
D(-1)-triples of the form {;1, b, c}; and their extensibility in the ring Z[√-t], t > 0
We study D(-1)-triples of the form {;1, b, c}; in the ring Z[√-t], t > 0, for positive integer b such that b is a prime, twice prime or twice prime squared. We prove that in those cases c has to be an integer. In cases of b = 2, 5, 10, 17, 26, 37, or 50 we prove that D(-1)-triples of the form {;1, b, c}; cannot be extended to a D(-1)-quadruple in the ring Z[√-t], t > 0, except in cases of t ∈ {;1, 4, 9, 25, 36, 49};. Even it is known that in case of Z[i] there exist infinitely many D(-1)-quadruples of the form {;1, b, c, d};, for t=1 and other exceptional cases of t we show that there exist infinitely many D(−1)-quadruples of the form {;1, b, −c, d};, c, d > 0 in Z[√−t].
Diophantine quadruples; quadratic field; simultaneous Pellian equations; linear form in logarithms
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Podaci o prilogu
7-7.
2014.
objavljeno
Podaci o matičnoj publikaciji
Conference on Diophantine m-tuples and related problems
Podaci o skupu
Conference on Diophantine m-tuples and related problems
predavanje
13.11.2014-15.11.2014
Westville (NJ), Sjedinjene Američke Države