Abstract
This chapter presents, and highlights, material (much of which will be familiar to the reader) required for the rest of this work.
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Maher, P.J. (2017). Preliminaries. In: Operator Approximant Problems Arising from Quantum Theory. Birkhäuser, Cham. https://doi.org/10.1007/978-3-319-61170-9_2
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DOI: https://doi.org/10.1007/978-3-319-61170-9_2
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