Let f be a continuous convex function on an interval J, let A, B, C, D be self-adjoint operators acting on a Hilbert space with spectra contained in J such that A + D = B + C and A≤m≤B,C≤M≤D for two real numbers m
CITATION STYLE
Moslehian, M. S., Mićić, J., & Kian, M. (2013). An operator inequality and its consequences. Linear Algebra and Its Applications, 439(3), 584–591. https://doi.org/10.1016/j.laa.2012.08.005
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