Abstract
We study the abstract geometric notion of unitaries in a Banach space characterized in terms of the equivalence of the norm determined by the state space.
Citation
Pradipta Bandyopadhyay. Krzysztof Jarosz. T. S. S. R. K. Rao. "Unitaries in Banach spaces." Illinois J. Math. 48 (1) 339 - 351, Spring 2004. https://doi.org/10.1215/ijm/1258136187
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