We establish a characterization of complex linear canonical transformations that are positive with respect
to a pair of strictly plurisubharmonic quadratic weights. As an application, we show that the boundedness
of a class of Toeplitz operators on the Bargmann space is implied by the boundedness of their Weyl symbols.
Keywords
positive Lagrangian plane, positive canonical
transformation, strictly plurisubharmonic quadratic form,
Fourier integral operator in the complex domain, Toeplitz
operator