环同态，在环论或抽象代数中，是指两个环R与S之间的映射f保持两个环的加法与乘法运算。
环同态基本定理 fThe Fundamental Theory of Ring
环同态核 [数] kernel of ring homomorphism
半环同态 semiring morphism
双自同态环 biendomorphism ring
自同态环 [数] endomorphism ring ; [数] ring of endomorphisms
分次同态环 rings of graded homomorphisms ; graded homomorphism ring
上同调环自同态 cohomology endomorphism
同态环 homomorphism ring
环的自同态 [数] endomorphism of a ring
从半环同态的角度出发，给出了半模的一个等价定义。
In this paper, give an equivalent definition of semi-module.
本文在引入半环概念的基础上，介绍半环同态、同余关系、单同余半环等概念，讨论两个同态半环之间单同余性质的关系。
This paper introduces the concept of semirings, homomorphism of semirings and congruence simple semirings, discusses the relation between two semirings.
本文首先定义了两个拟环之间的模糊同态映射。
The concept of fuzzy homomorphism between two near-ring was defined.
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