摘要
对加权射影空间CPn(Q)进行了加权blowup,分析了blowup后的toric结构和orbifold结构,以及所有twisted sector的变化。用组合论的方法计算了blowup前后每个twisted sector的奇异上同调,并且分析了其陈-阮上同调群的变化。
The weighted projective space CP^n(Q) is blown up, and the toric structure and orbifold structure of the blowup is analyzed. The singular cohomology of each twisted sector is claculated by com-binatorics. The difference between the Chen - Ruan cohomology group of CP^n(Q) and ones of its blowup is also analyzed.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
北大核心
2009年第2期1-4,10,共5页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金资助项目(10631050)
国家"973"计划资助项目(2006CB805905)