在這篇碩士論文中，第一章介紹了近環理論與自動機理論。第二章給出了一個詳盡的刻畫，介紹了以群半自動機所建造而成的句法近環。文中特別給出一類句法近環N(S)，此處S=(S_3,S_3,δ)，其中δ(x,y)= mx + ny ∀x,y ∈ S_3及m,n為非負整數。

In this thesis, Chapter1 describes the connections between nearring theory and the theory of automata. In Chapter2, we give a full description of how to construct the structure of a syntactic nearring associated with group semiautomaton. In particular, we give a full description of the syntactic nearrings N(S) where S=(S_3,S_3,δ) with δ(x,y)= mx + ny ∀x,y ∈ S_3 and m,n are non-negative integers.

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