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.
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页码：153 / 173
页数：21
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