AbstractWe investigate the Lipschitz continuity of the best approximation operator from a Hilbert (Banach) space into an approximatively compact subset. We study the notion of directional radius of curvature and show how the Lipschitz continuity of the metric projection depends on it
[EN] We give a counterexample to a recent statement in the metric approximation theory and provide a...
In this paper we prove that the metric projection Πk, p onto a polyhedral subset K of ℝn, endowed wi...
AbstractLet X be a Hilbert space, and consider the point x0 minimizing, for a given f in X, the dist...
AbstractWe investigate the Lipschitz continuity of the best approximation operator from a Hilbert (B...
AbstractThe continuity of the metric projection onto an approximatively compact set in a uniformly c...
AbstractThe continuity of the best approximation projection onto a suitable subspace of a metric spa...
AbstractWe study the best approximation of a point x in a Banach space B from a C2 manifold. We deri...
AbstractLet X be a Hilbert space, and consider the point x0 minimizing, for a given f in X, the dist...
We will investigate Lipschitz and Hölder continuous maps between a Banach space X and its dual space...
AbstractThe continuity of the best approximation projection onto a suitable subspace of a metric spa...
In a central paper on smoothness of best approximation in 1968 R. Holmes and B. Kripke proved among ...
AbstractThe main purpose of the paper is to give a global estimate for Lipschitz constants of metric...
In a central paper on smoothness of best approximation in 1968 R. Holmes and B. Kripke proved among ...
AbstractThe relations between the lower semicontinuity of the metric projection PG onto a finite-dim...
AbstractIn this paper we prove that themetric projectionΠK,ponto a polyhedral subsetKof Rn, endowed ...
[EN] We give a counterexample to a recent statement in the metric approximation theory and provide a...
In this paper we prove that the metric projection Πk, p onto a polyhedral subset K of ℝn, endowed wi...
AbstractLet X be a Hilbert space, and consider the point x0 minimizing, for a given f in X, the dist...
AbstractWe investigate the Lipschitz continuity of the best approximation operator from a Hilbert (B...
AbstractThe continuity of the metric projection onto an approximatively compact set in a uniformly c...
AbstractThe continuity of the best approximation projection onto a suitable subspace of a metric spa...
AbstractWe study the best approximation of a point x in a Banach space B from a C2 manifold. We deri...
AbstractLet X be a Hilbert space, and consider the point x0 minimizing, for a given f in X, the dist...
We will investigate Lipschitz and Hölder continuous maps between a Banach space X and its dual space...
AbstractThe continuity of the best approximation projection onto a suitable subspace of a metric spa...
In a central paper on smoothness of best approximation in 1968 R. Holmes and B. Kripke proved among ...
AbstractThe main purpose of the paper is to give a global estimate for Lipschitz constants of metric...
In a central paper on smoothness of best approximation in 1968 R. Holmes and B. Kripke proved among ...
AbstractThe relations between the lower semicontinuity of the metric projection PG onto a finite-dim...
AbstractIn this paper we prove that themetric projectionΠK,ponto a polyhedral subsetKof Rn, endowed ...
[EN] We give a counterexample to a recent statement in the metric approximation theory and provide a...
In this paper we prove that the metric projection Πk, p onto a polyhedral subset K of ℝn, endowed wi...
AbstractLet X be a Hilbert space, and consider the point x0 minimizing, for a given f in X, the dist...
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