论 Cuntz-Krieger 对象的强扩展群

IF 0.6 3区数学 Q3 MATHEMATICS Analysis Mathematica Pub Date : 2024-09-15 DOI:10.1007/s10476-024-00046-5

K. Matsumoto

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引用次数: 0

摘要

本文研究了 Cuntz-Krieger 代数的强外延群，并给出了计算强外延群的公式。我们还检测了 Cuntz-Krieger 代数的 Toeplitz 扩展在强扩展群和弱扩展群中的位置，从而发现带有 Toeplitz 扩展位置的弱扩展群是与其转置矩阵相关的 Cuntz-Krieger 代数的同构类的完全不变式。

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On strong extension groups of Cuntz–Krieger algebras

In this paper, we study the strong extension groups of Cuntz–Krieger algebras, and present a formula to compute the groups. We also detect the position of the Toeplitz extension of a Cuntz–Krieger algebra in the strong extension group and in the weak extension group to see that the weak extension group with the position of the Toeplitz extension is a complete invariant of the isomorphism class of the Cuntz–Krieger algebra associated with its transposed matrix.

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来源期刊

Analysis Mathematica MATHEMATICS-

CiteScore

1.00

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： Traditionally the emphasis of Analysis Mathematica is classical analysis, including real functions (MSC 2010: 26xx), measure and integration (28xx), functions of a complex variable (30xx), special functions (33xx), sequences, series, summability (40xx), approximations and expansions (41xx). The scope also includes potential theory (31xx), several complex variables and analytic spaces (32xx), harmonic analysis on Euclidean spaces (42xx), abstract harmonic analysis (43xx). The journal willingly considers papers in difference and functional equations (39xx), functional analysis (46xx), operator theory (47xx), analysis on topological groups and metric spaces, matrix analysis, discrete versions of topics in analysis, convex and geometric analysis and the interplay between geometry and analysis.

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