4 papers
D(n)-quintuples with square elements
Andrej Dujella, Matija Kazalicki, Vinko Petričević
For an integer n, a set of m distinct nonzero integers {a_1,a_2,...,a_m} such that a_i a_j+n is a perfect square for all 0<i<j<m+1, is called a D(n)-m-tuple. In this paper, we show…
Doubly regular Diophantine quadruples
Andrej Dujella, Vinko Petričević
For a nonzero integer n, a set of m distinct nonzero integers {a_1,a_2,...,a_m} such that a_i a_j + n is a perfect square for all 1 <= i < j <= m, is called a D(n)-m-tuple. In this…
On the largest element in D(n)-quadruples
Andrej Dujella, Vinko Petričević
Let be a nonzero integer. A set of nonzero integers such that is a perfect square for all is called a --tuple. In thi…
Diophantine quadruples with the properties and
Andrej Dujella, Vinko Petričević
For a nonzero integer , a set of distinct nonzero integers such that is a perfect square for all , is called a -$…