Parcourir par sujet "Unitary equivalence, Almost similarity and Posinormal operators"

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    • On unitary equivalence and almost similarity of some classes of operators in Hilbert spaces 

      Kiprop, Sammy Karani; King’ang’i, Denis Njue; Khalagai, Jairus Mutekhele (International Journal of Statistics and Applied Mathematics, 2020)
      In operator theory, it is a well-known fact that two similar operators have equal spectra even if they do not belong to the same class of operators. However, under a stronger relation of unitary equivalence it can be ...