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Unique Continuation of Harmonic Functions at Boundary Points and Applications to Problems in Complex Analysis

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Abstract

This is a report on some recent results obtained by the authors on unique continuation at boundary points for harmonic functions satisfying appropriate local sign conditions on the boundary. The authors’ investigation was initially motivated by some questions in several complex variables. After we present the main results we shall indicate the connection to these questions. We will also mention some open related problems. We consider an open set Ω in ℝn and a boundary point x 0. We need to assume that, near x 0, the boundary of Ω is either a piece of a hyperplane or a piece of a sphere. We state our results in the latter case.

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References

  1. H. Alexander, Boundary behavior of certain holomorphic maps, Michigan Math. J. 38 (1991), 117–128.

    Article  MathSciNet  MATH  Google Scholar 

  2. H. Alexander, A weak Hopf Lemma for holomorphic mappings, preprint.

    Google Scholar 

  3. S. Alinhac, M.S. Baouendi, and L. P. Rothschild, Unique continuation and regualrity at the boundary for holomorphic functions, Duke J. Math. 61 (1990), 635–653.

    Article  MathSciNet  MATH  Google Scholar 

  4. M.S. Baouendi and L. P. Rothschild, Unique continuation and a Schwarz reflection principle for analytic sets, Comm. P.D.E. 18 (1993), 1961–1970.

    Article  MathSciNet  MATH  Google Scholar 

  5. M.S. Baouendi and L. P. Rothschild, A local Hopf lemma and unique continuation for harmonic functions, Duke J. Math., Inter. Research Notices 71 (1993), 245–251.

    Article  MathSciNet  Google Scholar 

  6. M.S. Baouendi and L. P. Rothschild, Harmonic functions satisfying weighted sign conditions on the boundary, Ann. Inst. Fourier, Grenoble 43 (1993), 1311–1318.

    Article  MathSciNet  MATH  Google Scholar 

  7. M.S. Baouendi and L. P. Rothschild, Flat analytic discs attached to real hypersurfaces of finite type, Math. Research Letters 1 (1994), 359–367.

    MathSciNet  MATH  Google Scholar 

  8. S. Bell and L. Lempert, A C Schwarz reflection principle in one and several complex variables, J. Diff. Geom., 32 (1990), 889–915.

    MathSciNet  Google Scholar 

  9. E. Bishop, Differentiable manifolds in complex Euclidean space, Duke Math. J. 32 (1965), 1–22.

    Article  MathSciNet  MATH  Google Scholar 

  10. S. Huang and S. G. Krantz, A unique continuation problem for holomorphic mappings, Comm. P.D.E. 18 (1993), 241–263.

    Article  MathSciNet  MATH  Google Scholar 

  11. J.J. Kohn, Boundary behavior of (math) on weakly pseudoconvex manifolds of dimension two, J. Diff. Geom. 6 (1972), 523–542.

    MathSciNet  MATH  Google Scholar 

  12. H. Lewy, On the local character of the solution of an atypical differential equation in three variables and a related problem for regular functions of two complex variables, Ann. of Math. 64 (1956), 514–522.

    Article  MathSciNet  MATH  Google Scholar 

  13. C. Miranda, Partial differential equations of elliptic type, Ergeb.Math. Grenzgeb (n.F.), 2, Springer-Verlag, Berlin, 1970.

    Google Scholar 

  14. H.S. Shapiro, Notes on a theorem of Baouendi and Rothschild, preprint.

    Google Scholar 

  15. V. Shklover, Remarks on the local Hopf’s lemma, preprint.

    Google Scholar 

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Dedicated to the memory of Pierre Grisvard

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© 1996 Birkhäuser Boston

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Baouendi, M.S., Rothschild, L.P. (1996). Unique Continuation of Harmonic Functions at Boundary Points and Applications to Problems in Complex Analysis. In: Cea, J., Chenais, D., Geymonat, G., Lions, J.L. (eds) Partial Differential Equations and Functional Analysis. Progress in Nonlinear Differential Equations and Their Applications, vol 22. Birkhäuser Boston. https://doi.org/10.1007/978-1-4612-2436-5_3

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  • DOI: https://doi.org/10.1007/978-1-4612-2436-5_3

  • Publisher Name: Birkhäuser Boston

  • Print ISBN: 978-1-4612-7536-7

  • Online ISBN: 978-1-4612-2436-5

  • eBook Packages: Springer Book Archive

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