Pseudo differential Operators of Principal Type

  • Yu. V. Egorov
  • M. A. Shubin
Part of the Encyclopaedia of Mathematical Sciences book series (volume 31)


Let P(D) be a differential operator of order m with constant coefficients, and let P0(ξ) be its principal symbol.


Pseudodifferential Operator Pseudo Differential Operator Principal Symbol Linear Partial Differential Equation Fourier Integral Operator 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Yu. V. Egorov
  • M. A. Shubin

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