系统数学模型的基本模式：行为模式和状态变量模式以及在状态变量模式下的同构与同态系统；
The two basic modes of mathematical model-behavior mode and state variable mode, along with the isomorphic and homomorphic relation between models and real system are described.
然后根据扩张原理，在模糊集乘积同态、同构映射的条件下，研究模糊集乘积与模糊集乘积同态像之间的关系。
Then, based on the extension principle, the relations between fuzzy sets product and the homomorphic images of the fuzzy sets product are studied.
在一元泛代数上引入了双同余关系，从而使双同态映射与双同构映射得到了沟通。
In this paper we have given the concept of double-congruence, by which the concepts of double-homomorphism and double-isomorphism in a unary algebra are linked together.
在一元泛代数上引入了双同余关系，从而使双同态映射与双同构映射得到了沟通。
In this paper we have given the concept of double-congruence, by which the concepts of double-homomorphism and double-isomorphism in a unary algebra are linked together.
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