“principal homomorphism”的概念、定义、翻译、参考文献-科学参考

单词	principal homomorphism
释义	principal homomorphism [`prin·sǝ·pǝl ´hō·mō`mȯr´fiz·ǝm] ^MATHEMATICS Let a be an element of a ring R and M be a module over R; the principal homomorphism of M associated with a, denoted a_M, is the mapping which takes each element x in M into ax.
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