Introduction I. Reductive dual pairs and the Howe correspondence II. Classical reductive dual pairs: explicit calculations III. Differential operators on classical rings of invariants IV. The maximality of $J(k)$ and the simplicity of $\mathcal {D}(\bar {\mathcal {X}}_k)$ V. Differential operators on the ring of $\mathrm {SO}(k)$-invariants Appendix. Gabber's lemma
Notes
"September 1989, Volume 81, number 412 (third of 6 numbers)."
Bibliography
Includes bibliographical references (pages 114-117)
