Contributions to the theory of C*-correspondences with applications to multivariable dynamics
Contributions to the theory of C*-correspondences with applications to multivariable dynamics
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对 C* 对应理论的贡献及其在多变量动力学中的应用
DOI:
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发表时间:
2011
期刊:
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通讯作者:
E. Katsoulis
中科院分区:
文献类型:
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作者:
E. Kakariadis;E. Katsoulis
Motivated by the theory of tensor algebras and multivariable C*-dynamics, we revisit two fundamental techniques in the theory of C*-correspondences, the "addition of a tail" to a non-injective C*-correspondence and the dilation of an injective C*-correspondence to an essential Hilbert bimodule. We provide a very broad scheme for "adding a tail" to a non-injective C*-correspondence; our scheme includes the "tail" of Muhly and Tomforde as a special case. We illustrate the diversity and necessity of our tails with several examples from the theory of multivariable C*-dynamics. We also exhibit a transparent picture for the dilation of an injective C*-correspondence to an essential Hilbert bimodule. As an application of our constructs, we prove two results in the theory of multivariable dynamics that extend results of Davidson and Roydor and Peters. We also discuss the impact of our results on the description of the C*-envelope of a tensor algebra as the Cuntz-Pimsner algebra of the associated C*-correspondence.