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- W2128457471 abstract "Proposed by Oskar Maria Baksalary, Adam Mickiewicz University, Poznan, Poland, and Gotz Trenkler, Technische Universitat Dortmund, Dortmund,Germany. Let Cn,n denote the set of n x n complex matrices. Determine the shortest interval [a, b] such that if P and Q in Cn,n are nonzero orthogonal projectors, that is, Hermitian idempotent matrices, then all eigenvalues of PQ + QP belong to [a, b]." @default.
- W2128457471 created "2016-06-24" @default.
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- W2128457471 date "2010-01-01" @default.
- W2128457471 modified "2023-09-24" @default.
- W2128457471 title "Solution to Problem 11387 [2008,758] : Capturing eigenvalues in an integral" @default.
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