半群环的系数环同态及其正合性的讨论

A Discusion on the Coefficient Ring's Homomorphism of the Semigroup Rings and Its Exact Sequence

本文提出了半群环作为模的系数环同态概念，讨论了系数同态的性质，及系数环同态正合列的一些性质。

This paper has put forword a conception about the coefficient ring's homomorphism of semigroup rings,and discussed the quality about the coefficient ring's homomorphism of semigroup rings and its exaxt sequence of coefficient rings' homomorphism.