The boundary of the spectrum of a linear Operatoro
Taylor, A. E.
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Displaying similar documents to “Finite eigenfunction approximations for continuous spectrum operators.”
The boundary of the spectrum of a linear Operatoro
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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).
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