Kahler differentials for points in Pn

被引：10

作者：

de Dominicis, G

Kreuzer, M

机构：

[1] Univ Regensburg, Fak Math, D-93040 Regensburg, Germany

[2] Univ Genoa, Dipartimento Matemat, I-16146 Genoa, Italy

来源：

JOURNAL OF PURE AND APPLIED ALGEBRA | 1999年 / 141卷 / 02期

关键词：

D O I：

10.1016/S0022-4049(98)00016-4

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

If R is the homogeneous coordinate ring of a reduced 0-dimensional subscheme of P-n, we study the module of Kahler differentials Omega(R/K)(1). Explicit presentations of it and its torsion submodule are used to describe the module structure. From this we derive many properties of the Hilbert function of Omega(R/K)(1). Finally, this filnction is computed in a number of special cases, in particular for reduced 0-dimensional almost complete intersections. (C) 1999 Elsevier Science B.V. All rights reserved. MSC. Primary 13N05; secondary 14F10, 13D40.

引用

页码：153 / 173

页数：21

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