Involutive varieties with smooth support

[摘要] We prove a structure theorem for conic involutive varieties of the cotangent bundle of a smooth algebraic variety X whose projection on X is smooth. The paper includes an example of a conic involutive variety of T*X which is not the characteristic variety of any D-X-module. (C) 1997 Academic Press.

[发布日期] 1997-06-01