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A General Computational Scheme for Testing Admissibility of Nilpotent Orbits of Real Lie Groups of Inner Type

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Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 4151))

Abstract

One of the most fundamental problems in the field of Representation Theory is the description of all the unitary representations of a given group. For non-compact real reductive Lie groups, there is evidence that new unitary representations can be obtained from data provided by their admissible nilpotent orbits. In this paper, we describe a general scheme for determining the admissibility of a given real nilpotent orbit. We implement some parts of the scheme using the software system LiE. We give a detailed example and study the complexity of the algorithms.

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References

  1. Djoković, D.: Classification of nilpotent elements in simple exceptional real Lie algebras of inner type and description of their centralizers. J. Alg. 112, 503–524 (1988)

    Article  MATH  Google Scholar 

  2. Kostant, B., Rallis, S.: Orbits and representations associated with symmetric spaces. Amer. J. Math. 93, 753–809 (1971)

    Article  MATH  MathSciNet  Google Scholar 

  3. Noël, A.G.: Computing maximal tori using LiE and Mathematica. In: Sloot, P.M.A., Abramson, D., Bogdanov, A.V., Gorbachev, Y.E., Dongarra, J., Zomaya, A.Y. (eds.) ICCS 2003. LNCS, vol. 2657, pp. 728–736. Springer, Heidelberg (2003)

    Chapter  Google Scholar 

  4. Noël, A.G.: Classification of Admissible Nilpotent Orbits in Simple Exceptional Lie Algebras of Inner Type. American Mathematical Society Journal of Representation Theory 5, 455–493 (2001)

    Article  MATH  Google Scholar 

  5. Ohta, T.: Classification of admissible nilpotent orbits in the classical real Lie algebras. J. of Algebra 136(1), 290–333 (1991)

    Article  MATH  Google Scholar 

  6. Schwartz, J.: The determination of the admissible nilpotent orbits in real classical groups, Ph. D. Thesis M.I.T. Cambridge, MA (1987)

    Google Scholar 

  7. Sekiguchi, J.: Remarks on real nilpotent orbits of a symmetric pair. J. Math. Soc. Japan 39(1), 127–138 (1987)

    Article  MATH  MathSciNet  Google Scholar 

  8. Vergne, M.: Instantons et correspondence de Kostant-Sekiguchi. R. Acad. Sci. Paris Sér. I Math. 320, 901–906 (1995)

    MATH  MathSciNet  Google Scholar 

  9. Van Leeuwen, M.A.A., Cohen, A.M., Lisser, B.: LiE: A package for Lie group computations. Computer Algebra Nederland, Amsterdam, Netherlands (1992)

    Google Scholar 

  10. Vogan, D.: Unitary representations of reductive groups. Annals of Mathematical Studies, vol. 118, Princeton University Press Study (1987)

    Google Scholar 

  11. Vogan, D.: Associated varieties and unipotent representations. Harmonic Analysis on Reductive Groups, pp. 315–388. Birkhäuser, Boston-Basel-Berlin (1991)

    Google Scholar 

  12. Wolfram, S.: The Mathematica Book Wolfram media. Cambridge University Press, Cambridge (1998)

    Google Scholar 

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© 2006 Springer-Verlag Berlin Heidelberg

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Noël, A.G. (2006). A General Computational Scheme for Testing Admissibility of Nilpotent Orbits of Real Lie Groups of Inner Type. In: Iglesias, A., Takayama, N. (eds) Mathematical Software - ICMS 2006. ICMS 2006. Lecture Notes in Computer Science, vol 4151. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11832225_1

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  • DOI: https://doi.org/10.1007/11832225_1

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-38084-9

  • Online ISBN: 978-3-540-38086-3

  • eBook Packages: Computer ScienceComputer Science (R0)

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