✦ LIBER ✦
Conormal Modules via Primitive Ideals
✍ Scribed by Guangfeng Jiang
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 130 KB
- Volume
- 229
- Category
- Article
- ISSN
- 0021-8693
No coin nor oath required. For personal study only.
✦ Synopsis
The main object of this note is to study the conormal module M and the Ž2.
computation of the second symbolic power ᒄ of an ideal ᒄ in the residue ring O Orᒅ of a polynomial ring O O over a field of characteristic zero. The torsion part Ž .
Ž . T M of M and the torsion free module MrT M are expressed by the primitive Ž . ideal of ᒄ relative to ᒅ. Two characterizations for MrT M to be free are proved. Some immediate applications are worked out.