單投射半模和擬單內(nèi)射半模的若干研究
[Abstract]:In this paper, we study single projective semimodules, simple injective semimodules and quasi simple injective semimodules. This paper is composed of four parts: the first part is the preparatory knowledge, which lists the relevant definitions and propositions involved in this paper. In the second part, the concept of single projective semimodule is introduced into the basic knowledge of projective semimodule. The properties of single projective semimodule, such as the relation between single projective semimodule P and HomR (Pn-) functor, are studied. The relationship between single projective semimodule (?) APi and direct sum term Pi; Then it is proved that if the quotient semimodule of a projective semimodule M is an injective semimodule, then any single submodule of M must be a M-simple projective semimodule, and then the equivalent conditions of M-simple projective semimodule and k M-projective semimodule are given. Finally, we prove the Schanuel Lemma relative to a simple projective semimodule. In the third part, we introduce the concept of simple injective semimodules on injective semimodules, investigate the properties of simple injective semimodules, and finally prove the Schanuel Lemma relative to simple injective semimodules. In the fourth part, we discuss a special kind of simple injective semimodules, that is, quasi-simple injective semimodules, and mainly give the equivalent judgment of quasi-simple injective semimodules.
【學(xué)位授予單位】:江西師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:O153.3
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