Recently, Kakuda ([6]) has shown that precipitousness can be preserved under certain
forcing extensions. Before then, he had also shown that saturation of ideals can be …

Let A be a separable unital C∗-algebra, and let B c be the commutant in the Calkin algebra
of the image B of A under a trivial extension. We show that K 0 (B c) is isomorphic to the …

I define and analyze the Hensel-Steinitz algebra ( ), a crossed product C∗-algebra
associated with multiplication maps on continuous functions on the ring of -adic integers …

We investigate the relationship between inner derivations implemented by a norm-attainable
element of a C*-algebra to those of ideals and primitive ideals. Moreover, we give related …

A characterization is given of those unital, 2-subhomogeneous, Fell C*-algebras which have
only inner derivations. This proves Sproston and Strauss's conjecture from 1992. Various …

Lifting Automorphisms Page 1 K-Theory 16: 105–127, 1999. c 1999 Kluwer Academic Publishers.
Printed in the Netherlands. 105 Lifting Automorphisms ⋆ HUAXIN LIN Department of …

In this paper we give three functors $\mathfrak {P} $, $[\cdot] _K $ and $\mathfrak {F} $ on the
category of C $^\ast $-algebras. The functor $\mathfrak {P} $ assigns to each C $^\ast …

Let Ext (C (X), A) be the set of unitary equivalence classes of (unital) essential C*‐algebra
extensions of the following form: 0→ A→ E→ C (X)→ 0, where A is a simple AF‐algebra with …

Let $ A $ be a subhomogeneous $ C^* $-algebra. Then $ A $ contains an essential closed
ideal $ J $ with the property that for every derivation $\delta $ of $ A $ there exists a …

We consider various lifting problems for C∗-algebras. As an application of our results we
show that any commuting family of order zero maps from matrices to a von Neumann central …