On the existence of Diophantine quadruples in Z[√ -2] (CROSBI ID 191826)
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Soldo, Ivan
engleski
On the existence of Diophantine quadruples in Z[√ -2]
By the work of Abu Muriefah, Al-Rashed, Dujella and the author, the problem of the existence of D(z)-quadruples in the ring Z[√ -2] has been solved, except for the cases z=24a+2+(12b+6)√ -2, z=24a+5+(12b+6)√ -2, z=48a+44+(24b+12)√ -2. In this paper, we present some new formulas for D(z)-quadruples in these remaining cases, involving some congruence conditions modulo 11 on integers a and b. We show the existence of D(z)-quadruple for significant proportion of the remaining three cases.
Diophantine quadruples; quadratic field
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