Pseudo-differential operators (ΨDO) can be considered as natural extensions of linear partial differential operators, with which they share many essential properties. The study of pseudo-differential operators grew out of research in the 1960s on singular integral operators; being a relatively young subject, the theory is only now reaching a stable form.
KeywordsHomogeneous Space Singular Integral Operator Periodic Case Fourier Integral Operator Full Symbol
Unable to display preview. Download preview PDF.