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Neidhardt, Hagen (19)
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Institut für Mathematik (19)
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Mathematical results in quantum mechanics : international conference in Blossin (Germany), May 17 - 21, 1993
(1994)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
Singular perturbations, regularization and extension theory
(1994)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
Some remarks to Krein's extension theory
(1994)
Brasche, Johannes F.
;
Neidhardt, Hagen
Some new aspects of Krein's extension theory
(1994)
Brasche, Johannes F.
;
Koshmanenko, V. D.
;
Neidhardt, Hagen
On the point spectrum of selfadjoint extensions
(1995)
Brasche, Johannes F.
;
Neidhardt, Hagen
On the absolutely continuous spectrum of self-adjoint extensions
(1995)
Brasche, Johannes F.
;
Neidhardt, Hagen
Towards the right Hamiltonians for singular perturbations via regularization and extension theory
(1996)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
On the absolutely continuous subspace for non-selfadjoint operators
(1996)
Adamyan, Vadim M.
;
Neidhardt, Hagen
On the absolutely continuous subspace for contractions and dissipative operators
(1996)
Adamyan, Vadim M.
;
Neidhardt, Hagen
On the singular continuous spectrum of self-adjoint extensions
(1996)
Brasche, Johannes F.
;
Neidhardt, Hagen
On the right Hamiltonian for the singular perturbations : general theory
(1997)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
Fractional powers of self-adjoint operators and Trotter-Kato product formula
(1997)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
On operator-norm convergence of the Trotter-Kato product formula
(1998)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
Does each symmetric operator have a stability domain?
(1998)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
On error estimates for Trotter-Product formulas.
(1998)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
On inverse spectral theory: mixed types of spectra.
(1998)
Albeverio, Sergio
;
Brasche, Johannes F.
;
Neidhardt, Hagen
On semibounded restrictions of selfadjoint operators
(1998)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
Trotter-Kato product formula and symmetrically-normed ideals
(1998)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
Trotter-Kato product formula and operator-norm convergence
(1999)
Neidhardt, Hagen
;
Zagrebnov, Valentin A.
1
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19
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