Pell Equations: Non-Principal Lagrange Criteria and Central Norms
2012 ◽
Vol 55
(4)
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pp. 774-782
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Keyword(s):
AbstractWe provide a criterion for the central norm to be any value in the simple continued fraction expansion of for any non-square integer D > 1. We also provide a simple criterion for the solvability of the Pell equation x2 – Dy2 = –1 in terms of congruence conditions modulo D.
2018 ◽
Vol 11
(04)
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pp. 1850056
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2020 ◽
Vol 25
(2)
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pp. 125-132
2005 ◽
Vol 138
(3)
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pp. 367-381
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1992 ◽
Vol 329
(3)
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pp. 583-590
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Keyword(s):
2018 ◽
Vol 27
(11)
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pp. 1850170
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Keyword(s):
1999 ◽
Vol 30
(7)
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pp. 743-757
1993 ◽
Vol 5
(32)
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pp. 5829-5840
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