Articles with "symmetric" as a keyword



Weyl's theorem for complex symmetric operators

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Published in 2019 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2019.02.031

Abstract: Abstract An operator on Hilbert space is complex symmetric if it can be represented as a symmetric matrix relative to some orthonormal basis of the space. It is proved in this paper that each complex… read more here.

Keywords: weyl theorem; theorem complex; symmetric operators; symmetric ... See more keywords
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A class of complex symmetric Toeplitz operators on Hardy and Bergman spaces

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Published in 2020 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2020.124173

Abstract: Abstract An operator T ∈ B ( H ) is complex symmetric if there exists a conjugation C on H so that C T C = T ⁎ . In this paper, we characterize the… read more here.

Keywords: symmetric; hardy bergman; symmetric toeplitz; operator ... See more keywords

Extension of the notion of P-symmetric operators using the Aluthge transform I

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Published in 2024 at "Filomat"

DOI: 10.2298/fil2416669e

Abstract: The class of ?P-symmetric operators is introduced. Certain properties of this class of operators are obtained. Among other things, it is shown that (1) This class includes the quasinormal operators, isometries, co-isometries, partial isometries with… read more here.

Keywords: symmetric; extension notion; notion symmetric; using aluthge ... See more keywords