Basic trigonometric Korovkin approximation for fuzzy valued functions of two variables

Authors :: Yavuz, Enes
Source :: Comptes rendus de l'Academie bulgare des Sciences, vol. 74, no. 9, pp. 1276-1288 (2021)
Publication Year :: 2019
Abstract: We prove the basic trigonometric Korovkin approximation theorem for fuzzy valued functions of two variables and verify the approximation by the help of fuzzy modulus of continuity. Also, we introduce double level Fourier series of fuzzy valued functions and investigate corresponding approximation through the use of Ces\`{a}ro and Abel methods of summation of infinite series.<br />Comment: publication information is added

Database :: arXiv
Journal :: Comptes rendus de l'Academie bulgare des Sciences, vol. 74, no. 9, pp. 1276-1288 (2021)
Publication Type :: Report
Accession number :: edsarx.1901.06682
Document Type :: Working Paper
Full Text :: https://doi.org/10.7546/CRABS.2021.09.02

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