Finite-dimensional vertex algebra modules over fixed point differential subfields

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• 作者：Kenichiro Tanabe¹ ; ^{ktanabe@math.sci.hokudai.ac.jp}
• 关键词：Vertex algebra ; Differential field
• 刊名：Journal of Algebra
• 出版年：2012
• 期刊代码：69_00218693
• 类别：mt
• 出版时间：15 April, 2012
• 卷：356
• 期：1
• 页码：1-16
• 文件大小：256 K

摘要

Let K be a differential field over with derivation D, G a finite linear automorphism group over K which preserves D, and the fixed point subfield of K under the action of G. We show that every finite-dimensional vertex algebra -module is contained in some twisted vertex algebra K-module.