On operators with the same spectrum
Gh. Constantin (1975)
Matematički Vesnik
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Displaying similar documents to “On the spectrum of the reduced wave operators with cylindrical discontinuity.”
On operators with the same spectrum
On the generalized Kato spectrum
Benharrat, Mohammed, Messirdi, Bekkai (2011)
Serdica Mathematical Journal
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2010 Mathematics Subject Classification: 47A10. We show that the symmetric difference between the generalized Kato spectrum and the essential spectrum defined in [7] by sec(T) = {l О C ; R(lI-T) is not closed } is at most countable and we also give some relationship between this spectrum and the SVEP theory.
The fine spectra of some Cesàro generalized operators defined on ().
Bucur, Amelia (1996)
General Mathematics
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Dense point spectrum and absolutely continuous spectrum in spherically symmetric Dirac operators.
Karl Michael Schmidt (1995)
Forum mathematicum
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The spectrum of a bright perseid
Jan Bouška, A. Mrkos (1979)
Acta Universitatis Carolinae. Mathematica et Physica
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Qualitative properties of the peripheral spectrum
Jaroslav Zemánek (2007)
Banach Center Publications
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The joint approximate spectrum of a finite system of elements of a C*-algebra
GH. Mocanu (1974)
Studia Mathematica
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On a quantitative refinement of the Lagrange spectrum
Edward B. Burger, Amanda Folsom, Alexander Pekker, Rungporn Roengpitya, Julia Snyder (2002)
Acta Arithmetica
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Locality and Covariance of the Spectrum
H. J. Borchers (1986)
Recherche Coopérative sur Programme n°25
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Quasihyponormal operators and the continuity of the approximate point spectrum.
Djordjević, Slaviša V. (1997)
Matematichki Vesnik
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Diagonals of Self-adjoint Operators with Finite Spectrum
Marcin Bownik, John Jasper (2015)
Bulletin of the Polish Academy of Sciences. Mathematics
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Given a finite set X⊆ ℝ we characterize the diagonals of self-adjoint operators with spectrum X. Our result extends the Schur-Horn theorem from a finite-dimensional setting to an infinite-dimensional Hilbert space analogous to Kadison's theorem for orthogonal projections (2002) and the second author's result for operators with three-point spectrum (2013).
Different spectra for nonlinear operators.
Catană, Petronela (2005)
Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică
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