Quantum mechanics and partial differential equations Academic Article uri icon


  • This paper develops the basic theory of pseudo-differential operators on R n , through the Calderón-Vaillancourt (0, 0) L 2 -estimate, as a natural part of the harmonic analysis on the Heisenberg group, the group-theoretic embodiment of Heisenberg's Canonical Commutation Relations. The symbol mapping is given a group-theoretic interpretation consistent with the Kirillov method of orbits. By comparing different well-known realizations of the unique irreducible representation of the Heisenberg group, the Toeplitz operators on the complex n-ball are shown essentially to be pseudo-differential operators. The proof of the Calderón-Vaillancourt estimate is almost purely group-theoretic. Criteria for positivity, and for compactness are also given. © 1980, All rights reserved.

author list (cited authors)

  • Howe, R.

citation count

  • 95

publication date

  • September 1980