给定亏群块的个数的初等推导

A Elementary Proof of The Number of Blocks With a Given Defect Group

Ｇ．Ｒｏｂｉｎｓｏｎ的定理解决了给定亏群块的个数问题。以后Ｍ．ＢｏｕｅＰ．Ｌａｎｄｒｏｃｋ等分别通过不同的途径和方法都证明了这个结果。使用的工具都很不初等。本文试图用较初等的方法推导出Ｇ．Ｒｏｂｉｎｓｏｎ定理。

The theorem of G·Robinson bac settled the number of blocks with a given defect group. Later on M. Bone and P. Landroek proved this result separately in various method, but not all, using means is elementary. This paper will prove G. Robinson theorem by using elementary method.