Computing Holonomic D-Modules Associated to a Family of Non-isolated Hypersurface Singularities via Comprehensive Grobner Systems of PBW Algebra

被引:0
|
作者
Tajima, Shinichi [1 ]
Nabeshima, Katsusuke [2 ]
Ohara, Katsuyoshi [3 ]
Umeta, Yoko [4 ]
机构
[1] Niigata Univ, Grad Sch Sci & Technol, 8050 Ikarashi 2 No Cho,Nishi Ku, Niigata, Japan
[2] Tokyo Univ Sci, Dept Appl Math, 1-3 Kagurazaka,Shinjuku Ku, Tokyo, Japan
[3] Kanazawa Univ, Fac Math & Phys, Kakuma, Kanazawa, Japan
[4] Josai Univ, Dept Math, 3-26 Kioicho,Chiyoda Ku, Tokyo, Japan
关键词
Comprehensive Grobner system; Poincare-Birkhof-Witt algebra; Non-isolated singularity; Holonomic D-module; Local cohomology; B-FUNCTIONS; ALGORITHMS; IDEALS; ROOTS;
D O I
10.1007/s11786-022-00553-4
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The reduced b-functions and the relevant holonomic D-modules associated to a family of hypersurfaces with non-isolated singularities are considered in the context of symbolic computation. Based on the theory of comprehensive Grobner systems, algorithms of computing reduced b-functions and holonomic D-modules for parametric cases are introduced. A strategy for analyzing holonomic D-modules is described. Main ingredients of our approach are comprehensive Grobner systems on Poincare-Birkhoff-Witt algebra and local cohomology.
引用
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页数:22
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