Uniqueness of minimal projections onto two-dimensional subspaces
Boris Shekhtman ; Lesław Skrzypek
Studia Mathematica, Tome 166 (2005), p. 273-284 / Harvested from The Polish Digital Mathematics Library
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We prove that minimal projections from Lp (1 < p < ∞) onto any two-dimensional subspace are unique. This result complements the theorems of W. Odyniec ([OL, Theorem I.1.3], [O3]). We also investigate the minimal number of norming points for such projections.

Publié le : 2005-01-01
EUDML-ID : urn:eudml:doc:285071 
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Boris Shekhtman; Lesław Skrzypek. Uniqueness of minimal projections onto two-dimensional subspaces. Studia Mathematica, Tome 166 (2005) pp. 273-284. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm168-3-6/