Shape theory and asymptotic morphisms for C∗-algebras

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

Shape Theory and Asymptotic Morphisms for C*-algebras

In this paper we relate two topological invariants of a separable C*-algebras. The first is the shape invariant first studied by Effros and Kaminker [EK] and then developed further by Blackadar [B]. The second invariant is the isomorphism class of a C*-algebra in the asymptotic homotopy category A introduced by Connes and Higson [CH]. We prove that two separable C*-algebras are shape equivalent...

متن کامل

Asymptotic Morphisms and Elliptic Operators over C ∗ - Algebras

This paper provides an E-theoretic proof of an exact form, due to E. Troitsky, of the Mischenko-Fomenko Index Theorem for elliptic pseudodifferential operators over a unital C∗-algebra. The main ingredients in the proof are the use of asymptotic morphisms of Connes and Higson, vector bundle modification, a BaumDouglas-type group, and a KK-argument of Kasparov.

متن کامل

Commutative C-algebras and Sequentially Normal Morphisms

We show that the image of a commutative monotone sequentially complete C∗-algebra, under a sequentially normal morphism, is again a monotone sequentially complete C-algebra, and also a monotone sequentially closed C∗-subalgebra. As a consequence, the image of an algebra of this type, under a sequentially normal representation in a separable Hilbert space, is strongly closed. In the case of a un...

متن کامل

Commutative C ∗-algebras and Σ-normal Morphisms

We prove in an elementary fashion that the image of a commutative monotone σ-complete C-algebra under a σ-normal morphism is again monotone σ-complete and give an application of this result in spectral theory.

متن کامل

POINTWISE BOUNDED ASYMPTOTIC MORPHISMS AND THOMSEN’S NON-STABLE k-THEORY

In this paper I show that pointwise bounded asymptotic morphisms between separable metrisable locally convex *-algebras induce continuous maps between the quasi-unitary groups of the algebras, provided that the algebras support a certain amount of functional calculus. This links the asymptotic morphisms directly to Thomsen’s non-stable definition of k-theory in the C∗ algebra case. A result on ...

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: Duke Mathematical Journal

سال: 1994

ISSN: 0012-7094

DOI: 10.1215/s0012-7094-94-07327-4