34 citations · 127 across the 17 of their papers we have counts for
17 papers
Approximately inner derivations
Ola Bratteli, Akitaka Kishimoto, Derek W. Robinson
Let be an approximately inner flow on a algebra with generator and let denote the bounded generators of the approximating flows . We analyze the st…
Rohlin flows on the Cuntz algebra
Ola Bratteli, Akitaka Kishimoto, Derek W. Robinson
It is shown that certain quasi-free flows on the Cuntz algebra have the Rohlin property and therefore are cocycle-conjugate with each other. This, in particular, shows t…
AF flows and continuous symmetries
Ola Bratteli, Akitaka Kishimoto
We consider AF-flows, i.e., one-parameter automorphism groups of a unital simple C*-algebra which leave invariant the dense union of an increasing sequence of finite-dimensional *-…
Wavelet filters and infinite-dimensional unitary groups
Ola Bratteli, Palle E. T. Jorgensen
In this paper, we study wavelet filters and their dependence on two numbers, the scale N and the genus g. We show that the wavelet filters, in the quadrature mirror case, have a ha…
Convergence of the cascade algorithm at irregular scaling functions
Ola Bratteli, Palle E. T. Jorgensen
The spectral properties of the Ruelle transfer operator which arises from a given polynomial wavelet filter are related to the convergence question for the cascade algorithm for ap…
Decidability of the isomorphism problem for stationary AF-algebras and the associated ordered simple dimension groups
Ola Bratteli, Palle E. T. Jorgensen, Ki Hang Kim +1
The notion of isomorphism of stable AF-C*-algebras is considered in this paper in the case when the corresponding Bratteli diagram is stationary, i.e., is associated with a single…