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59 results on '"BĂRBOSU, DAN"'

53. Stancu-Kantorovich Type Operators.

Author

Pop, Ovidiu T. and Bărbosu, Dan

Subjects
*KANTOROVICH method, *OPERATOR theory, *FUNCTIONAL analysis, *OPERATOR algebras, *MATHEMATICS
Abstract

In this paper, we study the Kantorovich form of Stancu operators. As particular cases, we obtain similar properties for the Kantorovich form for Bernstein, Schurer and Schurer-Stancu operators. [ABSTRACT FROM AUTHOR]

Published
2009

58. On the Voronovskaja-type formula for the Bleimann, Butzer and Hahn bivariate operators.

Author

BĂRBOSU, DAN and MICLĂUŞ, DAN

Subjects
*MATHEMATICAL variables, *BIVARIATE analysis, *MATHEMATICAL formulas, *OPERATOR equations (Quantum mechanics), *QUANTITATIVE research
Abstract

In this paper we present two new alternative ways for the proof of Voronovskaja-type formula of the Bleimann, Butzer and Hahn bivariate operators, using the close connection between the recalled operators and Bernstein bivariate operators, respectively Stancu bivariate operators. [ABSTRACT FROM AUTHOR]

Published
2016

59. On the generalized Boolean sum Schurer-Stancu approximation formula.

Author

BĂRBOSU, DAN and POP, OVIDIU T.

Subjects
*BOOLEAN matrices, *BIVARIATE analysis, *ESTIMATION theory, *LINEAR equations, *NUMERICAL analysis
Abstract

In this paper, the Schurer-Stancu generalized Boolean sum (GBS, for short) approximation formula is considered and it's remainder term is expressed in terms of bivariate divided differences. When the approximated function is sufficiently smooth, an upper bound estimation for the remainder term is also established. As particular cases, GBS Schurer and respectively GBS Bernstein approximation formulas are obtained and the expressions of their remainder are explicitly given. [ABSTRACT FROM AUTHOR]

Published
2016
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