46 resultados para Perturbation (Mathematics)

em QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast


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A unitary operator V and a rank 2 operator R acting on a Hilbert space H are constructed such that V + R is hypercyclic. This answers affirmatively a question of Salas whether a finite rank perturbation of a hyponormal operator can be supercyclic.

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