AbstractThis paper is concerned with the problem of nonlinear simultaneous Chebyshev approximation in a real continuous function space. Some results on existence are established, in addition to characterization conditions of Kolmogorov type and also of alternation type. Applications are given to approximation by rational functions, by exponential sums and by Chebyshev splines with free knots
AbstractIn this paper we consider best Chebyshev approximation to continuous functions by generalize...
AbstractIn this paper we consider the problem of simultaneous approximation of a subset F of a Banac...
AbstractFor a general class of best simultaneous approximation problems, characterization and unique...
AbstractIn this paper we discuss the problem of weighted simultaneous Chebyshev approximation to fun...
AbstractThe problem is considered of best approximation of finite number of functions simultaneously...
Let X be Hausdorff topological vector space and f be a real valued continuous function on X: In this...
AbstractWe consider best simultaneous approximation to k continuous functions on an interval [a,b] f...
AbstractChebyshev approximation on an interval and on its closed subsets by a non-linear family with...
AbstractThe local behavior of the Chebyshev operator of best approximation from a curve of functions...
AbstractIn this paper we discuss the best Chebyshev approximation of continuous real or complex valu...
AbstractIt is shown that best Chebyshev approximations by exponential-polynomial sums are characteri...
AbstractNecessary conditions for Pareto optimality in constrained simultaneous Chebyshev best approx...
AbstractThis paper gives the following result. Let V1 and V2 be Chebyshev subspaces of C[−1, 1] with...
In this paper, we give a characterization of best Chebyshev approximation to set-valued functions fr...
AbstractA family in a linear space is to be simultaneously approximated by a finite-dimensional line...
AbstractIn this paper we consider best Chebyshev approximation to continuous functions by generalize...
AbstractIn this paper we consider the problem of simultaneous approximation of a subset F of a Banac...
AbstractFor a general class of best simultaneous approximation problems, characterization and unique...
AbstractIn this paper we discuss the problem of weighted simultaneous Chebyshev approximation to fun...
AbstractThe problem is considered of best approximation of finite number of functions simultaneously...
Let X be Hausdorff topological vector space and f be a real valued continuous function on X: In this...
AbstractWe consider best simultaneous approximation to k continuous functions on an interval [a,b] f...
AbstractChebyshev approximation on an interval and on its closed subsets by a non-linear family with...
AbstractThe local behavior of the Chebyshev operator of best approximation from a curve of functions...
AbstractIn this paper we discuss the best Chebyshev approximation of continuous real or complex valu...
AbstractIt is shown that best Chebyshev approximations by exponential-polynomial sums are characteri...
AbstractNecessary conditions for Pareto optimality in constrained simultaneous Chebyshev best approx...
AbstractThis paper gives the following result. Let V1 and V2 be Chebyshev subspaces of C[−1, 1] with...
In this paper, we give a characterization of best Chebyshev approximation to set-valued functions fr...
AbstractA family in a linear space is to be simultaneously approximated by a finite-dimensional line...
AbstractIn this paper we consider best Chebyshev approximation to continuous functions by generalize...
AbstractIn this paper we consider the problem of simultaneous approximation of a subset F of a Banac...
AbstractFor a general class of best simultaneous approximation problems, characterization and unique...
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