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Baumgärtel, Hellmut [Author]

Analytic perturbation theory for matrices and operators

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Berlin: Akademie-Verl., 1984

Published in: Mathematische Lehrbücher und Monographien / 2 ; 64
Baumgärtel, Hellmut [Author]

Operatoralgebraic methods in quantum field theory : a series of lectures - [1. ed.]

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Berlin: Akademie Verl., 1995
Baumgärtel, Hellmut [Author]

John von Neumann - aus Leben und Werk

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1987

Published in: Wissenschaft und Fortschritt ; 37(1987), 2, Seite 24-26
Baumgärtel, Hellmut [Author]

Warum passen mathematische Strukturen auf die Natur?

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1989

Published in: Spectrum ; 20(1989), 3, Seite 24-27
Baumgärtel, Hellmut [Author] ; Wollenberg, Manfred [Other]

Mathematical scattering theory

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Berlin: Akad.-Verl., 1983

Published in: Mathematische Lehrbücher und Monographien / 2 ; 59
Baumgärtel, Hellmut [Author]

Endlichdimensionale analytische Störungstheorie

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Berlin: Akademie-Verl., 1972

Published in: Mathematische Lehrbücher und Monographien / 2 ; 28
Baumgärtel, Hellmut [Author]

Einige Bemerkungen zur Differentialgleichung X'(t)=P(t)X(t) für Operatorfunktionen

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Berlin: Akad.-Verl., 1964

Published in: Deutsche Akademie der Wissenschaften: Abhandlungen der Deutschen Akademie der Wissenschaften zu Berlin, Klasse für Mathematik, Physik und Technik ; 1964,5
Baumgärtel, Hellmut [Author]; Wollenberg, Manfred [Author]

Causal nets of operator algebras : mathematical aspects of algebraic quantum field theory

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Berlin: Akad.-Verl., 1992

Published in: Mathematische Lehrbücher und Monographien / 2 ; 80
Baumgärtel, Hellmut [Author]

Einige Bemerkungen zur Differentialgleichung X’(t)= P(t) X(t) für Operatorfunktionen - [Reprint 2022]

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https://www.degruyter.com/isbn/9783112648865

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Berlin; Boston: De Gruyter, [2022]

Published in: Abhandlungen der Deutschen Akademie der Wissenschaften zu Berlin / Klasse für Mathematik, Physik und Technik ; 1964, 5
Baumgärtel, Hellmut [Author] ; Wollenberg, Manfred [Other]

Mathematical Scattering Theory

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Basel: Birkhäuser, 1983

Published in: Operator Theory: Advances and Applications ; 9- SpringerLink ; Bücher- Springer eBook Collection ; Mathematics and Statistics
Schröter, Karl [Author] ; Albrecht, Pietsch [Contributor]; Baumgärtel, Hellmut [Contributor]; Berg, Lothar [Contributor]; Budach, Lothar [Contributor]; Bunke, Olaf [Contributor]; Engel, Wolfgang [Contributor]; Gajewski, Hebbert [Contributor]; Gelbin, David [Contributor]; Gröger, Konrad [Contributor]; Koch, Helmut [Contributor]; Lehmann, Nikolaus Joachim [Contributor]; Pietsch, Albrecht [Contributor]; Schröter, Karl [Contributor]; Starke, Peter H [Contributor]; Sulanke, Rolf [Contributor]; Thiele, Helmut [Contributor]; Tutschke, Wolfgang [Contributor]; Wildenhain, Günther [Contributor]

Mathematik im System der Wissenschaften - [Reprint 2021]

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https://www.degruyter.com/isbn/9783112584804

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Berlin; Boston: De Gruyter, [2022] ; [Online-Ausgabe]

Published in: Sitzungsberichte des Plenums und der Klassen der Akademie der Wissenschaften der DDR ; 1973, 11
Baumgärtel, Hellmut

On a critical radiation density in the Friedmann equation

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AIP Publishing, 2012

Published in: Journal of Mathematical Physics
Baumgärtel, Hellmut

A Characteristic Decay Semigroup for the Resonances of Trace Class Perturbations with Analyticity Conditions of Semibounded Hamiltonians

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Springer Science and Business Media LLC, 2011

Published in: International Journal of Theoretical Physics
Baumgärtel, Hellmut

Resonances of quantum mechanical scattering systems and Lax–Phillips scattering theory

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AIP Publishing, 2010

Published in: Journal of Mathematical Physics
Baumgärtel, Hellmut

Spectral and Scattering Theory of Friedrichs Models on the Positive Half Line with Hilbert–Schmidt Perturbations

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Springer Science and Business Media LLC, 2009

Published in: Annales Henri Poincaré
Baumgärtel, Hellmut

Time asymmetry in quantum mechanics: a pure mathematical point of view

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IOP Publishing, 2008

Published in: Journal of Physics A: Mathematical and Theoretical
BAUMGÄRTEL, HELLMUT

ON LAX-PHILLIPS SEMIGROUPS

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Theta Foundation, 2007

Published in: Journal of Operator Theory
Baumgärtel, Hellmut

On the Reconstruction Problem in Superselection Theory

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Wiley, 1993

Published in: Mathematische Nachrichten
Baumgärtel, Hellmut

Wellenoperatoren, Abelscher Limes und Vertauschungsrelation Dem 25. Jahrestag der DDR gewidmet

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Wiley, 1974

Published in: Mathematische Nachrichten
Baumgärtel, Hellmut

Zu einem Problem von M. G. KREIN

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Wiley, 1973

Published in: Mathematische Nachrichten

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