Obstructions to deformations of DG modules

被引:1
作者
Armstrong, T
Umble, R
机构
[1] Penn State Coll Med, Dept Hlth Evaluat Sci, Hershey, PA 17033 USA
[2] Millersville Univ Pennsylvania, Dept Math, Millersville, PA 17551 USA
关键词
D O I
10.1090/S0002-9939-01-06293-1
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let k be a field and n greater than or equal to 1. There exist a differential graded k-module (V,d) and various approximations to a differential d + td(1) + t(2)d(2) + ... + t(n)d(n) on V[[t]]; one of which gives a non-trivial deformation, another is obstructed, and another is unobstructed at order n. The analogous problem in the category of k-algebras in characteristic zero remains a long-standing open question.
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页码:3447 / 3452
页数:6
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