A Dichotomy for Derivations on
Ola Bratteli
University of Trondheim, NorwayDavid E. Evans
University of Wales Cardiff, UKFrederick Goodman
University of Iowa, Iowa-City, USAPalle E.T. Jorgensen
University of Iowa, Iowa City, USA
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Abstract
Let be the Cuntz algebra generated by , and let be the -subalgebra of -polynomials in the generators. We show that if is a gauge-invariant derivation mapping into , and is approximately inner, then is inner.
Cite this article
Ola Bratteli, David E. Evans, Frederick Goodman, Palle E.T. Jorgensen, A Dichotomy for Derivations on . Publ. Res. Inst. Math. Sci. 22 (1986), no. 1, pp. 103–117
DOI 10.2977/PRIMS/1195178375