A continued fraction expansion for a -tangent function: an elementary proof.
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Prodinger, Helmut (2008)
Séminaire Lotharingien de Combinatoire [electronic only]
W.J. Thron, H. Waadeland (1980)
Numerische Mathematik
Chen, Kwang-Wu (2003)
Journal of Integer Sequences [electronic only]
Armin Leutbecher (1972)
Journal für die reine und angewandte Mathematik
Hans-J. Runckel (1976)
Journal für die reine und angewandte Mathematik
Walter Van Assche (1996)
Annales de la Faculté des sciences de Toulouse : Mathématiques
George T. Diderrich (1979)
Aequationes mathematicae
Ann Verdoodt (1994)
Annales mathématiques Blaise Pascal
Haakon Waadeland, Lisa Jacobsen (1988)
Numerische Mathematik
Gill, John (1997)
International Journal of Mathematics and Mathematical Sciences
Pierre Arnoux, Valérie Berthé, Shunji Ito (2002)
Annales de l’institut Fourier
We introduce two-dimensional substitutions generating two-dimensional sequences related to discrete approximations of irrational planes. These two-dimensional substitutions are produced by the classical Jacobi-Perron continued fraction algorithm, by the way of induction of a -action by rotations on the circle. This gives a new geometric interpretation of the Jacobi-Perron algorithm, as a map operating on the parameter space of -actions by rotations.
A.N. Stokes (1983)
Numerische Mathematik
Fritz Schweiger (1969)
Matematický časopis
B.C. Berndt, H.H. Chan, L.-C. Zhang (1996)
Journal für die reine und angewandte Mathematik
Paul Levrie (1989/1990)
Numerische Mathematik
D. Laugwitz (1990)
Elemente der Mathematik
E.K. Ifantis, C.G. Kokologiannaki, E. Petropoulou (2007)
Open Mathematics
Let T be a self-adjoint tridiagonal operator in a Hilbert space H with the orthonormal basis {e n}n=1∞, σ(T) be the spectrum of T and Λ(T) be the set of all the limit points of eigenvalues of the truncated operator T N. We give sufficient conditions such that the spectrum of T is discrete and σ(T) = Λ(T) and we connect this problem with an old problem in analysis.
Levrie, P., Bultheel, A. (1996)
ETNA. Electronic Transactions on Numerical Analysis [electronic only]
H. Padé (1899)
Annales scientifiques de l'École Normale Supérieure
Pinelis, Iosif (2002)
JIPAM. Journal of Inequalities in Pure & Applied Mathematics [electronic only]
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