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FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 33_7Date: 2019Journal Homepage Editorial BoardImpressum   Some numerical radius inequalities for products of Hilbert space operators 2089 - 2093 Mohsen Shah Hosseini and Baharak Moosavi   AbstractKeywords: Bounded linear operator; Hilbert space; norm inequality; numerical radiusMSC: 47A12; 47A30DOI: 10.2298/FIL1907089H Bounded sobriety and k-bounded sobriety of Q-cotopological spaces 2095 - 2106 Yujing Zhang and Kaiyun Wang   AbstractKeywords: Category; Q-cotopological space; irreducible closed set; bounded sobriety; k-bounded sobrietyMSC: 54A40; 54B30; 54D10; 18A40DOI: 10.2298/FIL1907095Z Operator inequalities related to p-angular distances 2107 - 2111 Davood Afkhami Taba and Hossein Dehghan   AbstractKeywords: Dunkl-Williams inequality; operator inequalities; operator absolute value; p-angular distanceMSC: 26D15; 47A63DOI: 10.2298/FIL1907107A Ideals in bounded equality algebras 2113 - 2123 Akbar Paad   AbstractKeywords: Equality algebra; (Boolean; Prime) ideal; Boolean algebraMSC: 03G25; 03G05; 06D35; 06E99DOI: 10.2298/FIL1907113P Ps-Drazin inverses in Banach algebras 2125 - 2133 Huanyin Chen and Tugce Pekacar Calci   AbstractKeywords: ps-Drazin inverse; multiplicative property; additive property; Banach algebraMSC: 15A09; 32A65; 16E50DOI: 10.2298/FIL1907125C A comparison between MMAE and SCEM for solving singularly perturbed linear boundary layer problems 2135 - 2148 Süleyman Cengizci   AbstractKeywords: Boundary layer; Singular perturbation; Successive complementary expansion method; Uniformly valid approximationMSC: 34B15; 34E15DOI: 10.2298/FIL1907135C Efficient algorithms for solving nonlinear fractional programming problems 2149 - 2179 Azam Dolatnezhadsomarin, Esmaile Khorram and Latif Pourkarimi   AbstractKeywords: Fractional programming problem; Bi-objective optimization problem; Pareto optimal solution; Pascoletti-Serafini scalarizationMSC: 90B50DOI: 10.2298/FIL1907149D Application measure of noncompactness and operator type contraction for solvability of an infinite system of differential equations in ℓp -space 2181 - 2189 Bipan Hazarika, Reza Arab and M Mursaleen   AbstractKeywords: System of differential equations; Measure of noncompactness; Meir-Keeler condensing operator; Fixed pointsMSC: 47H10; 34A34DOI: 10.2298/FIL1907181H On the essential numerical spectrum of operators on Banach spaces 2191 - 2199 Bouthaina Abdelhedi, Wissal Boubaker and Nedra Moalla   AbstractKeywords: Spectrum; Numerical spectrum; Numerical range; Essential numerical range; Essential growth boundMSC: 47A10; 47A12; 47A13DOI: 10.2298/FIL1907191A Article page: <<123

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