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Publication:3141256
zbMath0785.41023MaRDI QIDQ3141256
Publication date: 19 April 1994
Full work available at URL: https://eudml.org/doc/21915
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Approximation by operators (in particular, by integral operators) (41A35) Uniqueness of best approximation (41A52)
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A lower bound of the strongly unique minimal projection constant of \(\ell ^n_\infty\), \(n\geqslant 3\) ⋮ Equality of two strongly unique minimal projection constants ⋮ Minimal Projections with Respect to Numerical Radius ⋮ Vertices of the unit ball of subspaces in \(\mathcal{L}(H)\) and strong unicity of best approximation in \(\mathcal{L}(l_2^2)\) ⋮ Codimension-one minimal extensions onto Haar subspaces ⋮ Extensions of linear operators from hyperplanes and strong uniqueness of best approximation in \(\mathcal{L}(X, W)\)
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