Solvability of nonlinear Hammerstein quadratic integral equations.
El-Sayed, A.M.A., Hashem, H.H.G. (2009)
The Journal of Nonlinear Sciences and its Applications
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El-Sayed, A.M.A., Hashem, H.H.G. (2009)
The Journal of Nonlinear Sciences and its Applications
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Sen-Shan Huang (1997)
Acta Arithmetica
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Anatoly Zhigljavsky, Iskander Aliev (1999)
Acta Arithmetica
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Guillaume Grisel (1998)
Acta Arithmetica
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Let d ≥ 2 be a square-free integer and for all n ≥ 0, let be the length of the continued fraction expansion of . If ℚ(√d) is a principal quadratic field, then under a condition on the fundamental unit of ℤ[√d] we prove that there exist constants C₁ and C₂ such that for all large n. This is a generalization of a theorem of S. Chowla and S. S. Pillai [2] and an improvement in a particular case of a theorem of [6].
Jürgen Eichenauer-Herrmann, Harald Niederreiter (1995)
Acta Arithmetica
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Jean-Paul Allouche, Anna Lubiw, Michel Mendès France, Alfred J. van der Poorten, Jeffrey Shallit (1996)
Acta Arithmetica
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C. Baxa, J. Schoissengeier (1994)
Acta Arithmetica
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Heng Huat Chan (1995)
Acta Arithmetica
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Stanislav Jakubec (1998)
Acta Arithmetica
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The results of [2] on the congruence of Ankeny-Artin-Chowla type modulo p² for real subfields of of a prime degree l is simplified. This is done on the basis of a congruence for the Gauss period (Theorem 1). The results are applied for the quadratic field ℚ(√p), p ≡ 5 (mod 8) (Corollary 1).