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FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 35_8Date: 2021Journal Homepage Editorial BoardImpressum   Constructing some logical algebras from EQ-algebras 2747 - 2760 Rajab Ali Borzooei, Narges Akhlaghinia, Xiao Long Xin and Mona Aaly Kologani   AbstractKeywords: EQ-algebras; filter; fantastic (positive implicative; implicative) filter; prelinear EQ-algebra; prelinear filterMSC: 06E15; 06F99DOI: 10.2298/FIL2108747B The minus order for projections 2761 - 2774 Yuan Li, Jiajia Niu and Xiao-Ming Xu   AbstractKeywords: Minus order; Projection (Idempotent); J-projectionMSC: 47A05; 47B65; 46C20DOI: 10.2298/FIL2108761L Nonlinear maps preserving the mixed product [a • b, c] * on von Neumann algebras 2775 - 2781 Changjing Li, Yuanyuan Zhao and Fangfang Zhao   AbstractKeywords: Jordan ∗-product; isomorphism; von Neumann algebrasMSC: 47B48; 46L10DOI: 10.2298/FIL2108775L Approximation on bivariate parametric-extension of Baskakov-Durrmeyer-operators 2783 - 2800 Md Nasiruzzaman, Nadeem Rao, Manish Kumar and Ravi Kumar   AbstractKeywords: Baskakov operators; Simultaneous approximation; Peetre’s K-functional; Voronovskaja type theorem; Mixed-modulus of continuity; Bögel functionsMSC: 41A36; 441A25; 33C45DOI: 10.2298/FIL2108783N On three-dimensional (m, ρ)-quasi-Einstein n(κ)-contact metric manifold 2801 - 2809 Avijit Sarkar, Uday Chand De and Gour Gopal Biswas   AbstractKeywords: Generalized quasi-Einstein manifolds; (m; ρ)-quasi-Einstein manifolds; Gradient Einstein solitons; Contact metric manifolds; (κ; µ)-contact metric manifolds; N(κ)-contact metric manifoldsMSC: 53C25; 53C15; 53D10DOI: 10.2298/FIL2108801S Generalizations of some Hardy-Littlewood-Pólya type inequalities and related results 2811 - 2826 Sadia Khalid and Josip Pečarić   AbstractKeywords: Non-increasing sequence in weighted mean; Hardy-Littlewood-Pólya inequality; Shannon entropy; Fink’s identity; r-convex function; Čebyšev functional; Grüss and Ostrowski type inequalitiesMSC: 26A51; 26D15DOI: 10.2298/FIL2108811K Multiplicity of solutions for perturbed nonlinear fractional p -Laplacian boundary value systems related with two control parameters 2827 - 2848 Jiabin Zuo, Rafik Guefaifia, Fares Kamache and Salah Boulaaras   AbstractKeywords: Nonlinear fractional Dirichlet boundary value problems; p-Laplacian type; variational method; critical point theoryMSC: 35J60; 35B30; 35B40DOI: 10.2298/FIL2108827Z Article page: <<123

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