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Bøger af Siegfried Echterhoff

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  • af Siegfried Echterhoff, Xin Li, Joachim J. R. Cuntz & mfl.
    530,95 kr.

    This book gives an account of the necessary background for group algebras and crossed products for actions of a group or a semigroup on a space and reports on some very recently developed techniques with applications to particular examples.

  • af Anton Deitmar & Siegfried Echterhoff
    722,95 - 915,95 kr.

    This book examines the central principles of abelian harmonic analysis: Pontryagin duality, the Plancherel theorem and the Poisson summation formula, as well as their respective generalizations to non-abelian groups, including the Selberg trace formula.

  • af Anton Deitmar & Siegfried Echterhoff
    721,95 kr.

    The tread of this book is formed by two fundamental principles of Harmonic Analysis: the Plancherel Formula and the Poisson S- mation Formula. The generalization of the Poisson Summation Formula to non-abelian groups is the S- berg Trace Formula, which we prove for arbitrary groups admitting uniform lattices.