Approximation Theory and its Applications

, Volume 15, Issue 4, pp 71–87 | Cite as

Hardy type spaces for the wave operator

  • Li Guoquan
  • Lu Shanzhen


In this paper, we systematically study a class of waves. We then de fine Hardy type spaces by conjugate systems for this class of waves, and study their properties. In particular, we show that they extend some class of Lp estimates for the wave equation.


Wave Equation Cauchy Problem Laplace Operator Hardy Space Continuous Operator 


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Copyright information

© Springer 1999

Authors and Affiliations

  • Li Guoquan
    • 1
  • Lu Shanzhen
    • 1
  1. 1.Department of MathematicsBeijing Normal UniversityBeijingPRC

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