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Publications de l'Institut MathématiquePublisher: Matematički institut SANU, BeogradISSN: 0350-1302Issue: (N.S.) 105 (119)Date: 2019Journal Homepage Editorial BoardImpressum   Wave-Front Sets Related to Quasi-Analytic Gevrey Sequences 1 - 16 Stevan Pilipović and Joachim Toft   AbstractKeywords: wave-front sets; ultradistributionsMSC: 35A18; 46F05; 35ExxDOI: https://doi.org/10.2298/PIM1919001P Weak Associativity and Quasigroup Units 17 - 24 Aleksandar Krapež   AbstractKeywords: quasigroup; loop; unit; weak associativityMSC: 20N05DOI: https://doi.org/10.2298/PIM1919017K On a Graph Connecting Hyperbinary Expansions 25 - 38 Maurizio Brunetti and Alma D'Aniello   AbstractKeywords: hyperbinary expansions; oriented graph; edge-coloured graphMSC: 05C30; 11B75; 68Q42; 68R15DOI: https://doi.org/10.2298/PIM1919025B Degrees of the Approximation of Integrable Functions by Some Special Matrix Means of Fourier Series 39 - 47 Radosława Kranz, Aleksandra Rzepka and Ewa Sylwestrzak-Maślanka   AbstractKeywords: degree of approximation; Fourier series; matrix meansMSC: 42A24DOI: https://doi.org/10.2298/PIM1919039K The Convolution of Finite Number of Analytic Functions 49 - 63 Poonam Sharma, Ravinder Krishna and Janusz Sokół   AbstractKeywords: analytic functions; convolution; subordination; convex functionsMSC: 30C45; 30C50DOI: https://doi.org/10.2298/PIM1919049S Functions With Constant Sums Over a Hyperplane and Applications 65 - 80 Kanet Ponpetch, Sukrawan Mavecha and Vichian Laohakosol   AbstractKeywords: functions with constant sums; hyperplaneMSC: 39B22 33B10DOI: https://doi.org/10.2298/PIM1919065P Reverse Hilbert Inequalities Involving Series 81 - 92 Chang-Jian Zhao and Wing Sum Cheung   AbstractKeywords: convex function; concave function; Jensen's inequality; Hilbert's inequalityMSC: 26D15DOI: https://doi.org/10.2298/PIM1919081Z Pell Factoriangular Numbers 93 - 100 Florian Luca, Japhet Odjoumani and Alain Togbé   AbstractKeywords: factoriangular numbers; Pell numbersMSC: 11D59;11D09;11D7 11A55DOI: https://doi.org/10.2298/PIM1919093L Analytical and Numerical Aspect of Coincidence Point Problem of Quasi-Contractive Operators 101 - 121 Faik Gürsoy, Müzeyyen Ertürk, Abdul Rahim Khan and Vatan Karakaya   AbstractKeywords: Jungck type iteration methods; quasi-contractive operators; convergence; rate of convergence; stabilityMSC: 47H09; 47H10; 54H25; 47J25DOI: https://doi.org/10.2298/PIM1919101G A Note on Some Topological Properties of Köthe Space $\lambda(P)$ 123 - 130 Medıne Yeşılkayagıl and Feyzı Başar   AbstractKeywords: Fréchet spaces; Köthe sequence spacesMSC: 46A45DOI: https://doi.org/10.2298/PIM1919123Y Article page: 12>>

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