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Simultaneous Interpolation and Approximation by a Class of Multivariate Positive Operators
Numerical Algorithms, 2003zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Statistical approximation by positive linear operators on modular spaces
Positivity, 2009zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Karakuş, Sevda +2 more
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On Ritz Approximations for Positive Definite Operators [PDF]
, 2003 We present new bounds for the eigenvalues and eigenvectors of positive definite operators. An algorithm for the computation of rigorous bounds for finite- element approximations is outlined. An accuracy of these approximations is assessed on several model examples and compared with the existing bounds found in the literature.
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Approximation of positive functions by linear positive polynomial operators
2012The class of continuous 2π-periodical functions f(x) which satisfy the inequality \( |f(x+h)+f(x-h)-2f(x)|\leq 2|h|^\alpha \,\,\,\,\, 0 < \alpha < 2 \)is denoted by Zα.
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Revista De La Real Academia De Ciencias Exactas, Fisicas Y Naturales - Serie A: Matematicas, 2023
Ana Maria Acu +2 more
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Ana Maria Acu +2 more
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Difference of Some Positive Linear Approximation Operators for Higher-Order Derivatives
Symmetry, 2020Ana Maria Acu +2 more
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On the approximation of a function by linear positive operators
2018Bulgarian.
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