Circle Actions on C*-Algebras, Partial Automorphisms, and a Generalized Pimsner-Voiculescu Exact Sequence

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Title: a Canonical Form of the Pimsner-voiculescu Embedding

In joint work with Zhuang Niu, an embedding of the irrational rotation C *-algebra in an AF algebra has been constructed which does not involve the arbitrary choices present in the original Pimsner-Voiculescu embedding. While the AF algebra is the same in the two cases, in the sense that the two AF algebras constructed are isomorphic, it is not quite clear what the relation is between the const...

متن کامل

Time Automorphisms on C ∗ - Algebras

Applications of fractional time derivatives in physics and engineering require the existence of nontranslational time automorphisms on the appropriate algebra of observables. The existence of time automorphisms on commutative and noncommutative C∗-algebras for interacting many-body systems is investigated in this article. A mathematical framework is given to discuss local stationarity in time a...

متن کامل

Exactness of Cuntz–pimsner C–algebras

Let H be a full Hilbert bimodule over a C-algebra A. We show that the Cuntz–Pimsner algebra associated to H is exact if and only if A is exact. Using this result, we give alternative proofs for exactness of reduced amalgemated free products of exact C– algebras. In the case that A is a finite–dimensional C–algebra, we also show that the Brown–Voiculescu topological entropy of Bogljubov automorp...

متن کامل

Cuntz-Pimsner C-algebras associated with subshifts

By using C∗-correspondences and Cuntz-Pimsner algebras, we associate to every subshift (also called a shift space) X a C∗-algebra OX, which is a generalization of the Cuntz-Krieger algebras. We show that OX is the universal C ∗-algebra generated by partial isometries satisfying relations given by X. We also show thatOX is a one-sided conjugacy invariant of X.

متن کامل

On Certain Cuntz-pimsner Algebras

Let A be a separable unital C*-algebra and let π : A → L(H) be a faithful representation of A on a separable Hilbert space H such that π(A) ∩ K(H) = {0}. We show that OE , the Cuntz-Pimsner algebra associated to the Hilbert A-bimodule E = H⊗C A, is simple and purely infinite. If A is nuclear and belongs to the bootstrap class to which the UCT applies, then the same applies to OE . Hence by the ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Functional Analysis

سال: 1994

ISSN: 0022-1236

DOI: 10.1006/jfan.1994.1073