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FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 37_6Date: 2023Journal Homepage Editorial BoardImpressum   Visualization of spheres in the generalized Hahn space 1701 - 1712 Vesna I Veličković and Edin Dolićanin   AbstractKeywords: Visualizations; Shapes of spheres; Generalized Hahn sequence space; Visibility and contourMSC: 68U07; 46–04; 46A45DOI: 10.2298/FIL2306701V On the set of all i-convergent sequences over different spaces 1713 - 1721 Mandobi Banerjee and Manasi Mandal   AbstractKeywords: I-convergence; Product and box topological spaces; Fort space; Hilbert-Cube space; Fréchet sequence spaceMSC: 40A35; 40B05DOI: 10.2298/FIL2306713B An iterative stochastic procedure with a general step to a linear regular inverse problem 1723 - 1732 Fouad Maouche   AbstractKeywords: Robbins-Monro; Inverse problem; Fredholm integral; Almost complete convergenceMSC: 65N21; 65C50DOI: 10.2298/FIL2306723M A new combinatorial identity for Bernoulli numbers and its application in Ramanujan's expansion of harmonic numbers 1733 - 1740 Conglei Xu and Dechao Li   AbstractKeywords: Bernoulli number; Identity; Harmonic number; Asymptotic expansion; Recursive formulaMSC: 05A19; 11B37; 11B65; 41A60DOI: 10.2298/FIL2306733X Bounds for the Berezin number of reproducing kernel Hilbert space operators 1741 - 1749 Anirban Sen, Pintu Bhunia and Kallol Paul   AbstractKeywords: Berezin symbol; Berezin number; Bounded linear operators; Reproducing kernel Hilbert spaceMSC: 47A30;15A60;47A12DOI: 10.2298/FIL2306741S Drazin invertibility for sum and product of two elements in a ring 1751 - 1765 Xiaolan Qin and Linzhang Lu   AbstractKeywords: Drazin inverse; Ring; Nilpotent; Weakly commutative conditionMSC: 15A09; 32A65; 16E50DOI: 10.2298/FIL2306751Q Integral operators on grand Lebesgue spaces and related weights with properties 1767 - 1776 Santosh Kaushik, Taqseer Khan and Harindri Chaudhary   AbstractKeywords: Bp-class; B−1p -class; B∗p-class; Averaging operator; Adjoint averaging operator; Lebesgue spaces; Grand Lebesgue spacesMSC: 26D10; 26D15; 46E35DOI: 10.2298/FIL2306767K Anholonomic surfaces via directional motion of curves 1777 - 1792 Talat Korpinar, Rıdvan Cem Demirkol and Zeliha Korpinar   AbstractKeywords: Osculating motion; Rectifying motion; Normal motion; Directional derivatives; Anholonomic surfacesMSC: 53A10; 53C44; 14J25; 53Z05DOI: 10.2298/FIL2306777K ∗-Ricci tensor on three dimensional almost coKähler manifolds 1793 - 1802 V Venkatesha, Uday Chand De, Aruna H Kumara and Devaraja Mallesha Naik   AbstractKeywords: Almost coKähler manifolds; Codazzi-type ∗-Ricci tensor; Lie groupMSC: 53D15; 53C25DOI: 10.2298/FIL2306793V New characterizations of g-Drazin inverse in a Banach algebra 1803 - 1813 Huanyin Chen and Marjan Sheibani Abdolyousefi   AbstractKeywords: g-Drazin inverse; Anti-triangular matrix; Banach algebraMSC: 15A09; 32A65DOI: 10.2298/FIL2306803C Article page: 123>>

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