Approximation by max-product operators of Kantorovich type

Dedicated to Professor Heiner Gonska on the occasion of his 70th anniversary.

Authors

  • Lucian COROIANU University of Oradea Department of Mathematics and Computer Sciences Universit˘a¸tii Street, No. 1 410087 Oradea, Romania, e-mail: lcoroianu@uoradea.ro
  • Sorin G. GAL University of Oradea Department of Mathematics and Computer Sciences Universit˘a¸tii Street, No. 1 410087 Oradea, Romania, e-mail: galso@uoradea.ro

DOI:

https://doi.org/10.24193/subbmath.2019.2.07

Keywords:

Max-product operators, max-product operators of Kantorovich kind, uniform approximation, shape preserving properties, localization results, max-product Kantorovich-Choquet operators.

Abstract

We associate to various linear Kantorovich type approximation operators, nonlinear max-product operators for which we obtain quantitative approximation results in the uniform norm, shape preserving properties and localization results.

Mathematics Subject Classification (2010): 41A35, 41A25, 41A20.

References

Bede, B., Coroianu, L., Gal, S.G., Approximation and shape preserving properties of the Bernstein operator of max-product kind, Intern. J. Math. Math. Sci., 2009, Art. ID 590589, 2009.

Bede, B., Coroianu, L., Gal, S.G., Approximation by Max-Product Type Operators, Springer, 2016, xv+458 pp.

Coroianu, L., Gal, S.G., Approximation by truncated max-product operators of Kantorovich-type based on generalized (ϕ, ψ)-kernels, Math. Meth. Appl. Sci., online access, 2018: 1-14, DOI: 10.1002/mma.5262.

Coroianu, L., Gal, S.G., Approximation by max-product operators of Kantorovich- Choquet type based on generalized (ϕ, ψ)-kernels, in preparation.

Coroianu, L., Gal, S.G., Classes of functions with improved estimates in approximation by the max-product Bernstein operator, Anal. Appl., 9(2011), 249–274.

Coroianu, L., Gal, S.G., Localization results for the Bernstein max-product operator, Appl. Math. Comp., 231(2014), 73–78.

Gal, S.G., Shape-Preserving Approximation by Real and Complex Polynomials, XIV+352 pp., Birkha¨user, Boston, Basel, Berlin, 2008.

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Published

2019-06-30

How to Cite

COROIANU, L., & GAL, S. G. (2019). Approximation by max-product operators of Kantorovich type: Dedicated to Professor Heiner Gonska on the occasion of his 70th anniversary. Studia Universitatis Babeș-Bolyai Mathematica, 64(2), 207–223. https://doi.org/10.24193/subbmath.2019.2.07

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