论文摘要
加权射影线由射影直线P1(k)中t个两两不同的数构成的有序数列λ =(λ1,λ2,…,λt)和权序列p=(p1,p2,…,pt)构成,记为X(p,λ).权序列确定一个秩为1的阿贝尔群L(p),称为string群.加权射影线X(p,λ)确定L(p)-分次的齐次坐标代数S(p,λ).加权射影线的凝聚层范畴coh-X(p,λ)是L(p)分次S(p,λ)-有限生成模范畴模去L(p)分次S(p,λ)-有限维模范畴的商范畴.为研究不同的加权射影线的凝聚层范畴之间的关系,文[1]定义了string群之间的admissible态射.利用admissible态射nπ:L(p)→ L(q),可导出范畴等价(coh-X(p,λ))kerπ→coh-X(q,μ).其中(coh-X(p,λ))kerπ是群kerπ导出的等变范畴.本论文研究tubular型的string群之间的admissible态射.第一章回顾了加权射影线的凝聚层范畴的发展历史,介绍了本论文的背景.第二章回顾了相关的基础知识.第三章给出了tubular型的admissible态射的完全分类.第四章刻画了由admissible态射确定的tubular型的加权射影线的凝聚层范畴之间的联系.
论文目录
文章来源
类型: 硕士论文
作者: 张洪侠
导师: 林亚南
关键词: 加权射影线,齐次坐标代数,凝聚层范畴,态射
来源: 厦门大学
年度: 2019
分类: 基础科学
专业: 数学
单位: 厦门大学
分类号: O154.1
总页数: 36
文件大小: 1465K
下载量: 4
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