Generalization of angles and orthogonality to Banach spaces via Lp Pythagorean theorem, applied to preconditioning of linear systems.
On the extreme spectral proper ties of Toeplitz matrices generated by L1 functions with several minima/maxima
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Angles, orthogonality, and Pythagorean theorem in Banach spaces with two related applications
Generalization of angles and orthogonality to Banach spaces via Lp Pythagorean theorem, applied to preconditioning of linear systems.