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Search: id:A097915
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| A097915 |
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Number of points in a certain complex manifold associated with the Hilbert modular group of the totally real field Q(sqrt(n)), n square-free, that arise from isotropy groups of order 3. |
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+0
3
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| 1, 2, 2, 2, 3, 4, 4, 4, 4, 4, 6, 2, 4, 5, 8, 8, 4, 6, 10, 4, 3, 4, 8, 8, 8, 10, 2
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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F. Hirzebruch, Hilbert modular surfaces, L'Enseignement Math., 19 (1973), 183-281; Ges. Abh. II, 225-323.
A. Prestel, Die elliptischen Fixpunkte ..., Math. Ann., 177 (1968), 181-209.
A. Prestel, Die Fixpunkte der symmetrischen ..., Math. Ann., 200 (1973), 123-139.
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CROSSREFS
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Sequence in context: A060243 A091822 A060973 this_sequence A029131 A162351 A087816
Adjacent sequences: A097912 A097913 A097914 this_sequence A097916 A097917 A097918
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Sep 04 2004
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