Von Neumann Algebra

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High Quality Content by WIKIPEDIA articles! In mathematics, a von Neumann algebra or W -algebra is a -algebra of bounded operators on a Hilbert space that is closed in the weak operator topology and contains the identity operator. They were originally introduced by John von Neumann, motivated by the study of single operators, group representations, ergodic theory and quantum mechanics. His double commutant theorem shows that the analytic definition is equivalent to a purely algebraic definition as an algebra of symmetries. Two basic examples of von Neumann algebras are as follows. The ring L?(R) of essentially bounded measurable functions on the real line is a commutative von Neumann algebra, which acts by pointwise multiplication on the Hilbert space L2(R) of square integrable functions. The algebra B(H) of all bounded operators on a Hilbert space H is a von Neumann algebra, non-commutative if the Hilbert space has dimension at least 2.

Weitere Informationen

  • Allgemeine Informationen
    • GTIN 09786130356835
    • Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
    • Sprache Englisch
    • Größe H220mm x B150mm x T5mm
    • Jahr 2010
    • EAN 9786130356835
    • Format Fachbuch
    • ISBN 978-613-0-35683-5
    • Titel Von Neumann Algebra
    • Untertitel Bounded Operator, Normed Vector Space, John von Neumann, Von Neumann Micommutant Theorem, Operator Theory, Group Representation, Weak Operator Topology
    • Gewicht 143g
    • Herausgeber VDM Verlag Dr. Müller e.K.
    • Anzahl Seiten 84
    • Genre Mathematik

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