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On a class of second order partial differential operators of non-principal type

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References

  1. Duistermaat, J. J. and Hörmander L., Fourier Integral Operators II,Acta Math., 128 (1972), 183–269.

    Article  MathSciNet  MATH  Google Scholar 

  2. Gilioli, A. and Treves, F., An Example in the Solvability Theory of Linear PDE's,Amer. J. Math., 96 (1974), 367–385.

    Article  MathSciNet  MATH  Google Scholar 

  3. Mcnikoff, A., Pseudo-differential Operators with Double Characteristics,Math. Ann., 231 (1977), 145–180.

    Article  MathSciNet  Google Scholar 

  4. Yamasaki A., On a Necessary Condition for the Local Solvability of Pseudo-differential Operators with Double Characteristics,Comm. in PDE's, 5 (1980), 209–224.

    Article  MathSciNet  MATH  Google Scholar 

  5. Hörmander L., Differential Operators of Principal Type,Math. Ann., 140 (1960), 124–146.

    Article  MathSciNet  MATH  Google Scholar 

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Yumin, H. On a class of second order partial differential operators of non-principal type. Acta Mathematica Sinica 1, 35–40 (1985). https://doi.org/10.1007/BF02560001

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