THE BESOV SPACE BOUNDEDNESS FOR CERTAIN FOURIER INTEGRAL OPERATORS

As we know, there are lots of papers studying on the boundedness in various spaces (such as L~p, Hlder and Besov spaces) for pseudodifferential operators, However, so far we've only seen a few articles in the feild of Fourier integral operators, and they are only related to L~p boundedness (1], 2], 3]). Obviously, the problem is that we haven't