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GALOIS ACTIONS OF A CLASS INVARIANT OVER QUADRATIC NUMBER FIELDS WITH DISCRIMINANT D≡64(mod72)

  • Jeon, Daeyeol (Department of Mathematics Education Kongju National University)
  • Received : 2012.12.11
  • Accepted : 2013.01.11
  • Published : 2013.02.15

Abstract

A class invariant is the value of a modular function that generates a ring class field of an imaginary quadratic number field such as the singular moduli of level 1. In this paper, we compute the Galois actions of a class invariant from a generalized Weber function $g_1$ over imaginary quadratic number fields with discriminant $D{\equiv}64(mod72)$.

Keywords

References

  1. H. H. Chan, A. Gee, and V. Tan, Cubic singular moduli, Ramanujan's class invariants $\lambda}_n$ and the explicit Shimura reciprocity law, Pacific J. Math. 208 (2003), 23-37. https://doi.org/10.2140/pjm.2003.208.23
  2. A. Gee, Class invariants by Shimura's reciprocity law, J. Theor. Nombre Bordeaux 11 (1999), 45-72. https://doi.org/10.5802/jtnb.238
  3. A. Gee, Class fields by Shimura reciprocity, Ph. D. Thesis, Universiteit van Amsterdam, 2001.
  4. A. Gee and P. Stevenhagen, Generating class fields using Shimura reciprocity, Proceedings of the Third International Symposium on Algorithmic Number Theory, Lecture Notes in Computer Sciences 1423 pp. 441-453, Springer-Verlag, 1998.
  5. D. Jeon, Formulas of Galois actions of some class invariants over quartic number fields with discriminants $D{\equiv}1\;(mod\;12)$, J. of Chungcheong Math. Soc. 22 (2009), 799-814.
  6. D. Jeon, Galois actions of a class invariant over quadratic number fields with discriminant $D{\equiv}-3\;(mod\;36)$, J. of Chungcheong Math. Soc. 23 (2010), 853-860
  7. D. Jeon, Galois actions of a class invariant over quadratic number fields with discriminant $D{\equiv}21\;(mod\;12)$, J. of Chungcheong Math. Soc. 24 (2011), 921-925
  8. G. Shimura, Introduction to the arithmetic theory of automorphic forms, Princeton University Press, 1971.
  9. P. Stevenhagen, 'Hilbert's 12th problem, complex multiplication and Shimura reciprocity'Class field theory-its centenary and prospect, ed. K. Miyake, Adv. Studies in pure math. 30 (2001), 161-176.
  10. H. Weber, Lehrbuch der Algebra, dritter Band, Friedrich Vieweg und Sohn, 1908.