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FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 36_3Date: 2022Journal Homepage Editorial BoardImpressum   The error estimates of Kronrod extension for Gauss-Radau and Gauss-Lobatto quadrature with the four Chebyshev weights 961 - 977 Davorka Jandrlić, Aleksandar Pejčev and Miodrag Spalević   AbstractKeywords: Gauss-Kronrod quadrature formulae; Remainder term for analytic function; Error boundMSC: 65D32; 65D30; 41A55DOI: 10.2298/FIL2203961J Equivalence among L-closure (interior) operators, L-closure (interior) systems and L-enclosed (internal) relations 979 - 1003 Fangfang Zhao and Bin Pang   AbstractKeywords: L-closure operator; L-closure system; L-enclosed relation; L-interior operator; L-interior system; L-internal relationMSC: 03E72; 52A01; 54A05DOI: 10.2298/FIL2203979Z Anti-gaussian quadrature rule for trigonometric polynomials 1005 - 1019 Nevena Z Petrović, Marija P Stanić and Tatjana V Tomović Mladenović   AbstractKeywords: anti-Gaussian quadrature rules; recurrence relation; averaged Gaussian formulaMSC: 65D32DOI: 10.2298/FIL2203005P Products and inverses of multidiagonal matrices with equally spaced diagonals 1021 - 1030 László Losonczi   AbstractKeywords: multidiagonal matrices; structure of their products; inverse matrixMSC: 15B99; 15A09DOI: 10.2298/FIL2203021L On the stability of multicubic-quartic and multimixed cubic-quartic mappings 1031 - 1048 Zohreh Abbasbeygi, Abasalt Bodaghi and Ayoub Gharibkhajeh   AbstractKeywords: Fixed point method; Hyers-Ulam stability; multicubic-quartic mapping; multimixed cubic-quartic mapping; non- Archimedean normed spaceMSC: 39B52; 39B72; 39B82; 46B03DOI: 10.2298/FIL2203031A On Kantorovich variant of Baskakov type operators preserving some functions 1049 - 1060 Khursheed J Ansari   AbstractKeywords: Baskakov-Kantorovich type operators; rate of convergence; weighted approximationMSC: 41A10; 41A25; 41A36DOI: 10.2298/FIL2203049A Some studies on partial isometry in rings with involution 1061 - 1067 Xinyu Yang, Zhiyong Fan and Wei Junchao   AbstractKeywords: group inverse; MP-invertible element; partial isometry element; EP element; strongly EP elementMSC: 16B99; 16W10; 15A09; 46L05DOI: 10.2298/FIL2203061Y Article page: <<123

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