Weyl Quantization and Tensor Products of Fock and Bergman Spaces Bent OrstedGaoyong Zhang Indiana University Mathematics Journal 1994 text pdf 10.1512/iumj.1994.43.43023 10.1512/iumj.1994.43.43023 en Indiana Univ. Math. J. 43 (1994) 551 - 583 state-of-the-art mathematics http://iumj.org/access/