D(-1)-triples of the form {;;1, b, c};; in the ring Z[√ -t], t>0 (CROSBI ID 204405)
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Podaci o odgovornosti
Soldo, Ivan
engleski
D(-1)-triples of the form {;;1, b, c};; in the ring Z[√ -t], t>0
In this paper, 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 and twice prime squared. We prove that in those cases c has to be an integer. In cases of b=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 t in {; ; 1, 4, 9, 25, 36, 49}; ; . For those 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
This paper is accepted for publication on February 17, 2014. The final publication is available at link.springer.com.
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Podaci o izdanju
39 (3)
2016.
1201-1224
objavljeno
0126-6705
10.1007/s40840-015-0229-7