AbstractThe main result in this paper is the characterization of all n-dimensional weak Chebyshev Z subspaces of C(Q) for which the metric projection has a continuous selection. It is also shown that if n ⩾ 3 and PN has a continuous selection, then Q should be homeomorphic to a subset of R
AbstractAn intrinsic characterization is given of those finite-dimensional subspaces whose metric pr...
Abstract. In this paper, we give sufficient conditions for a map with nonconvex values to have a con...
AbstractWe prove a continuous selection theorem for quasi-lower semicontinuous mappings with values ...
AbstractThe main result in this paper is the characterization of all n-dimensional weak Chebyshev Z ...
AbstractX is a compact Hausdorff space and C(X) the Banach space of real-valued continuous functions...
AbstractLet T be a locally compact Hausdorff space and let G denote a finite-dimensional subspace of...
AbstractBest approximation in C(X) by elements of a Chebyshev subspace is governed by Haar's theorem...
AbstractWe study the problem of existence of pointwise-Lipschitz-continuous selections for the metri...
AbstractWe study the problem of existence of pointwise-Lipschitz-continuous selections for the metri...
AbstractAn intrinsic characterization is given of those finite-dimensional subspaces whose metric pr...
AbstractIn this paper we give a characterization of those n-dimensional subspaces of C0(X), where X ...
AbstractX is a compact Hausdorff space and C(X) the Banach space of real-valued continuous functions...
AbstractCharacterizations are given of when the metric projection PM onto a proximal subspace M has ...
AbstractEvery set-valued mapping satisfying an assumption weaker than lower semi-continuity admits a...
AbstractFor a set-valued mapping, the relationships between lower semicontinuity, almost lower semic...
AbstractAn intrinsic characterization is given of those finite-dimensional subspaces whose metric pr...
Abstract. In this paper, we give sufficient conditions for a map with nonconvex values to have a con...
AbstractWe prove a continuous selection theorem for quasi-lower semicontinuous mappings with values ...
AbstractThe main result in this paper is the characterization of all n-dimensional weak Chebyshev Z ...
AbstractX is a compact Hausdorff space and C(X) the Banach space of real-valued continuous functions...
AbstractLet T be a locally compact Hausdorff space and let G denote a finite-dimensional subspace of...
AbstractBest approximation in C(X) by elements of a Chebyshev subspace is governed by Haar's theorem...
AbstractWe study the problem of existence of pointwise-Lipschitz-continuous selections for the metri...
AbstractWe study the problem of existence of pointwise-Lipschitz-continuous selections for the metri...
AbstractAn intrinsic characterization is given of those finite-dimensional subspaces whose metric pr...
AbstractIn this paper we give a characterization of those n-dimensional subspaces of C0(X), where X ...
AbstractX is a compact Hausdorff space and C(X) the Banach space of real-valued continuous functions...
AbstractCharacterizations are given of when the metric projection PM onto a proximal subspace M has ...
AbstractEvery set-valued mapping satisfying an assumption weaker than lower semi-continuity admits a...
AbstractFor a set-valued mapping, the relationships between lower semicontinuity, almost lower semic...
AbstractAn intrinsic characterization is given of those finite-dimensional subspaces whose metric pr...
Abstract. In this paper, we give sufficient conditions for a map with nonconvex values to have a con...
AbstractWe prove a continuous selection theorem for quasi-lower semicontinuous mappings with values ...
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