设G,H是有限生成Abe群,G到H的群同态的集合为Hom(G,H)。文章主要研究G,H之间的群同态,给出了G到H的群同态的集合Hom(G,H)的一个完全的刻画。%Let G and H be finitely generrated abelian groups,Hom(G,H) be group homomorphisms between G and H.Hom(G,H) will be studied.A complete description of Hom(G,H) will be given in this paper.
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