数域上半群C* 代数的K-理论不变量(II)
On K-theoretic invariants of semigroup C*-algebras attached to number fields, Part II
摘要:
本文继续研究数域上代数整数环上ax+ b-半群上的半群C* 代数-代数的K-理论不变量。我们证明了从半群C* 代数及其标准交换子代数中,可以重构其基础数域的zeta函数及其理想类群(作为一个群).此外,我们给出了另一种解释的动力系统的这一结果。
英文摘要:
This paper continues the study of K-theoretic invariants for semigroup C*-algebras attached to ax+b-semigroups over rings of algebraic integers in number fields. We show that from the semigroup C*-algebra together with its canonical commutative subalgebra, it is possible to reconstruct the zeta function of the underlying number field as well as its ideal class group (as a group). In addition, we give an alternative interpretation of this result in terms of dynamical systems.
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