Operator Approximant Problems Arising from Quantum Theory [electronic resource] / by Philip J. Maher.
Вид матеріалу:
Текст Публікація: Cham : Springer International Publishing : Imprint: Birkhäuser, 2017Видання: 1st ed. 2017Опис: X, 106 p. 6 illus. online resourceТип вмісту: - text
- computer
- online resource
- 9783319611709
- 515.724 23
- QA329-329.9
ЕКнига
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What this book is about: approximants -- Preliminaries -- Self-adjoint and positive approximants -- Commutator approximants -- Spectral, and numerical range, approximants -- Unitary, isometric and partially isometric approximation of positive operators.
This book offers an account of a number of aspects of operator theory, mainly developed since the 1980s, whose problems have their roots in quantum theory. The research presented is in non-commutative operator approximation theory or, to use Halmos' terminology, in operator approximants. Focusing on the concept of approximants, this self-contained book is suitable for graduate courses.
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