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arXiv 2207.06962math.RA
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拟交换代数的网格化

Reticulation of Quasi-commutative Algebras

George Georgescu

摘要:

同余模簇$\mathcal{V}$中的交换子运算允许我们定义任何代数$A\in \mathcal{V}$的素同余和$A$的素谱$Spec(A)$。第一个系统的研究,这一频谱可以发现在论文中Agliano,发表在泛代数(1993年)。代数$A\in \mathcal{V}$的网状结构是有界分配代数$L(A)$,其素谱(赋予Stone拓扑)与$Spec(A)$(赋予Agliano定义的拓扑)同胚。在最近的一篇论文中,C. Murelanan和作者定义了半生成同余模簇$\mathcal{V}$中的代数$A$的网状结构,满足$(H)$的假设:$A$的紧同余的集合$K(A)$在闭子下是闭的.这个理论不包括非交换环的Belluce网状结构.本文引入半理想生成同余模簇$\mathcal{V}$中的拟交换代数作为Belluce拟交换环的推广。本文定义并研究了拟交换代数的网状结构的概念,从而得到了拟交换环的Belluce网状结构的一个特例。利用网格化方法证明了拟交换代数的一个特征定理和一些传递性质

英文摘要:

The commutator operation in a congruence-modular variety $\mathcal{V}$ allows us to define the prime congruences of any algebra $A\in \mathcal{V}$ and the prime spectrum $Spec(A)$ of $A$. The first systematic study of this spectrum can be found in a paper by Agliano, published in Universal Algebra (1993). The reticulation of an algebra $A\in \mathcal{V}$ is a bounded distributive algebra $L(A)$, whose prime spectrum (endowed with the Stone topology) is homeomorphic to $Spec(A)$ (endowed with the topology defined by Agliano). In a recent paper, C. Mureşan and the author defined the reticulation for the algebras $A$ in a semidegenerate congruence-modular variety $\mathcal{V}$, satisfying the hypothesis $(H)$: the set $K(A)$ of compact congruences of $A$ is closed under commutators. This theory does not cover the Belluce reticulation for non-commutative rings. In this paper we shall introduce the quasi-commutative algebras in a semidegenerate congruence-modular variety $\mathcal{V}$ as a generalization of the Belluce quasi-commutative rings. We define and study a notion of reticulation for the quasi-commutative algebras such that the Belluce reticulation for the quasi-commutative rings can be obtained as a particular case. We prove a characterization theorem for the quasi-commutative algebras and some transfer properties by means of the reticulation

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