摘要
The authors introduce an effective method to construct the rational functionsheaf K on an elliptic curve E, and further study the relationship between K and anycoherent sheaf on E. Finally, it is shown that the category of all coherent sheaves of finitelength on E is completely characterized by K.
Abstract The authors introduce an effective method to construct the rational function sheaf κ on an elliptic curve E, and further study the relationship between κ and any coherent sheaf on E. Finally, it is shown that the category of all coherent sheaves of finite length on E is completely characterized by κ.
基金
supported by the National Natural Science Foundation of China (No. 10671161)
the DoctoralProgram Foundation of the Ministry of Education of China (No. 20060384002).