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Continuity of the spectrum of a field of self-adjoint operators. http://t.co/F3GKTTyzx5
Continuity of the spectrum of a field of self-adjoint operators. http://t.co/F3GKTTyzx5
Siegfried Beckus, Jean Bellissard : Continuity of the spectrum of a field of self-adjoint operators http://t.co/taZichfp4C