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1-quasiconformal mappings on a (2,2)-type quadric

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Abstract

This paper gets the Beltrami equations satisfied by a 1-quasiconformal mapping, which are exactly CR or anti-CR equations on (2,2)-type quadric Q 0. This means a 1-quasiconformal mapping on Q 0 is CR or anti-CR. This reduces the determination of 1-quasiconformal mappings to a problem on the theory of several complex analysis. The result about the group of CR automorphisms is used to determine the unit component of group of 1-quasiconformal mappings.

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References

  1. Mostow G D. Strong rigidity of locally symmetric spaces, Ann Math Studies, 78, Princeton: Princeton University Press, 1973.

    Google Scholar 

  2. Gromov M. Carnot-Carathéodory spaces seen from within, sub-Riemannian geometry, Prog Math, 1996, 144: 79–323.

    MathSciNet  Google Scholar 

  3. Pansu P. Métriques de Carnot-Carathéodory et quasiisométries des espacies symétriques de rang un, (French) Ann of Math (2), 1989, 129(2): 1–60.

    Article  MathSciNet  Google Scholar 

  4. Korányi A, Riemann H M. Quasiconformal mappings on the Heisenberg group, Invent Math, 1985, 80(2): 309–338.

    Article  MATH  MathSciNet  Google Scholar 

  5. Capogna L. Regularity of quasi-linear equations in the Heisenberg group, Comm Pure Appl Math, 1997, 50(9): 867–889.

    Article  MATH  MathSciNet  Google Scholar 

  6. Loboda A V. Real-analytic generating manifolds of codimension 2 in C 4 and biholomorphic mappings of them, Izv Akad Nauk SSSR Ser Mat, 1988, 52(5): 970–990; translation in Math USSR Izv, 1989, 33(2): 295–315.

    MATH  Google Scholar 

  7. Korányi A, Riemann H M. Foundations for the theory of quasiconformal mappings on the Heisenberg group, Adv Math, 1995, 111: 1–87.

    Article  MATH  MathSciNet  Google Scholar 

  8. Ežov V V, Schmalz G. Holomorphic automorphisms of quadrics, Math Z, 1994, 216(3): 453–470.

    MATH  MathSciNet  Google Scholar 

  9. Varadarajan V S. Lie Groups, Lie Algebras, and Their Representations, New York, Berlin, Heidelberg, Tokyo: Springer-Verlag, 1974.

    MATH  Google Scholar 

  10. Chow W L. Über systeme von linearen partiellen differentialgleichungen erster ordnung, (German) Math Ann, 1939, 117: 98–105.

    Article  Google Scholar 

  11. Nagel A, Stein E M, Wainger S. Balls and metrics defined by vector fields. I. Basic properties, Acta Math, 1985, 155(1–2): 103–147.

    Article  MATH  MathSciNet  Google Scholar 

  12. Pansu P. Quasiisométries des variétés de courbure négative, thesis, Paris, 1987.

  13. Balogh Z M, Holopainen I, Tyson J T. Singular solutions, homogeneous norms, and quasiconformal mappings in Carnot groups, Math Ann, 2002, 324(1): 159–186.

    Article  MATH  MathSciNet  Google Scholar 

  14. Vodopýanov S K. On the differentiability of mappings of Sobolev classes on the Carnot group, (Russian) Mat Sb, 2003, 194(6): 67–86; translation in Sb Math, 2003, 194(5–6): 857–877.

    Google Scholar 

  15. Wang W. The Teichmüller distance on the space of spherical CR structures, Sci China Ser A, 2006, 49(11): 1523–1538.

    Article  MATH  MathSciNet  Google Scholar 

  16. Capogna L, Cowling M. Conformality and Q-harmonicity in Carnot groups, Duke Math J, 2006, 135(3): 455–479.

    Article  MATH  MathSciNet  Google Scholar 

  17. Warner F W. Foundations of differentiable manifolds and Lie groups, London: Foresman and Company, 1971.

    MATH  Google Scholar 

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Correspondence to Qing-yan Wu.

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Supported by the National Natural Science Foundation of China (10571155)

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Wu, Qy. 1-quasiconformal mappings on a (2,2)-type quadric. Appl. Math. J. Chin. Univ. 24, 65–75 (2009). https://doi.org/10.1007/s11766-009-1946-1

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  • DOI: https://doi.org/10.1007/s11766-009-1946-1

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