A Characterization of C(X) Among Algebras on Planar Sets by the Existence of a Finite Universal Korovkin System.
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A characterization of random approximations.
Beg, Ismat (1999)
International Journal of Mathematics and Mathematical Sciences
A characterization of strictly convex metric linear spaces.
Narang, T.D. (1986)
Publications de l'Institut Mathématique. Nouvelle Série
A class of generalized best approximation problems in locally convex linear topological spaces.
Samanta, Hora Krishna (1997)
International Journal of Mathematics and Mathematical Sciences
A classification of projectors
Gustavo Corach, Alejandra Maestripieri, Demetrio Stojanoff (2005)
Banach Center Publications
A positive operator A and a closed subspace of a Hilbert space ℋ are called compatible if there exists a projector Q onto such that AQ = Q*A. Compatibility is shown to depend on the existence of certain decompositions of ℋ and the ranges of A and . It also depends on a certain angle between A() and the orthogonal of .
A Computational Procedure for the Approximation of Random Functions.
W.H. Ling, H.W. McLaughlin, M.L. Smith (1976/1977)
Numerische Mathematik
A Continuous Selection of the Metric Projection in Matrix Spaces, Addendum.
H. Berens, M. Finzel (1990)
Numerische Mathematik
A density theorem for locally convex lattices.
Kravvaritis, Dimitrie, Păltineanu, Gavriil (2004)
Abstract and Applied Analysis
A discrete integral representation for polynomials of fixed maximal degree and their universal Korovkin closure.
Michael Pannenberg (1986)
Journal für die reine und angewandte Mathematik
A generalization of an Ekeland-Lebourg theorem and the differentiability of distance functions
Zajíček, L. (1984)
Proceedings of the 11th Winter School on Abstract Analysis
A method of approximation of spaces of generalized functions
Jan Krzysztof Kowalski (1984)
Banach Center Publications
A non-Chebyshev finite-dimensional subspace in
S. B. Stechkin (1989)
Banach Center Publications
A note on a two-weighted Sobolev inequality
Petr Gurka, Alois Kufner (1989)
Banach Center Publications
A note on Chebyshev centres
T. D. Narang (1982)
Matematički Vesnik
A note on f-best approximation in reflexive Banach spaces
T. D. Narang (1985)
Matematički Vesnik
A note on Kakutani type fixed point theorems.
Khan, A.R., Hussain, N., Khan, L.A. (2000)
International Journal of Mathematics and Mathematical Sciences
A note on rotation in separable Banach spaces
Wolfgang Lusky (1979)
Studia Mathematica
A Note on Suns in Convex Metric Spaces
T. D. Narang, Sangeeta (2010)
Publications de l'Institut Mathématique
A priori convergence of the greedy algorithm for the parametrized reduced basis method
Annalisa Buffa, Yvon Maday, Anthony T. Patera, Christophe Prud’homme, Gabriel Turinici (2012)
ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique
The convergence and efficiency of the reduced basis method used for the approximation of the solutions to a class of problems written as a parametrized PDE depends heavily on the choice of the elements that constitute the “reduced basis”. The purpose of this paper is to analyze the a priori convergence for one of the approaches used for the selection of these elements, the greedy algorithm. Under natural hypothesis on the set of all solutions to the problem obtained when the parameter varies, we...
A priori convergence of the Greedy algorithm for the parametrized reduced basis method
Annalisa Buffa, Yvon Maday, Anthony T. Patera, Christophe Prud’homme, Gabriel Turinici (2012)
ESAIM: Mathematical Modelling and Numerical Analysis
The convergence and efficiency of the reduced basis method used for the approximation of the solutions to a class of problems written as a parametrized PDE depends heavily on the choice of the elements that constitute the “reduced basis”. The purpose of this paper is to analyze the a priori convergence for one of the approaches used for the selection of these elements, the greedy algorithm. Under natural hypothesis on the set of all solutions to the problem obtained when the parameter varies, we...
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