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FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 32_3Date: 2018Journal Homepage Editorial BoardImpressum   Portfolio optimization by using MeanSharp-βVar and multi objective MeanSharp-βVar models 815 - 823 Shokoofeh Banihashemi and Sarah Navidi   AbstractKeywords: Portfolio optimization; data envelopment analysis; multi objective decision making; value at risk; negative data; MeanSharp-βVaR; multi objective MeanSharp-βVaRMSC: 90C05; 90C29; 91G10; 91G60DOI: 10.2298/FIL1803815B Application of thermal potentials to the solution of the problem of heat conduction in a region degenerates at the initial moment 825 - 836 Alexey A Kavokin, Adiya T Kulakhmetova and Yuriy R Shpadi   AbstractKeywords: Heat equation in degenerating domain; Volterra integral operator; Picard’s methodMSC: 45D99; 35K20DOI: 10.2298/FIL1803825K Summation by Riesz means of the Fourier-Laplace series 837 - 846 Ahmad Fadly Nurullah bin Rasedee, Abdumalik Rakhimov and Anvarjon Akhmedov   AbstractKeywords: Fourier-Laplace series; D∗ point; Riesz meansMSC: 42B05; 42A10DOI: 10.2298/FIL1803837R Existence and uniqueness results for an inverse problem for a semilinear equation with final overdetermination 847 - 858 Ali Ugur Sazaklioglu, Abdullah Said Erdogan and Allaberen Ashyralyev   AbstractKeywords: Semilinear parabolic equations; inverse problem; finite difference method; existence; uniquenessMSC: 35K60; 65M06DOI: 10.2298/FIL1803847S Finite difference method for Bitsadze-Samarskii type overdetermined elliptic problem with Dirichlet conditions 859 - 872 Charyyar Ashyralyyev and Gulzipa Akyuz   AbstractKeywords: Finite difference method; inverse elliptic problem; stability; coercive stability; overdeterminationMSC: 35N25; 65J22; 39A14; 39A30DOI: 10.2298/FIL1803859A On some generalizations of properties of the Lowndes operator and their applications to partial differential equations of high order 873 - 883 Shakhobiddin T Karimov   AbstractKeywords: Generalized Erdélyi-Kober operator; Lowndes operator; Cauchy problem; Bessel differential operator; partial differential equations of the high orderMSC: 26A33; 35L10; 35L80; 35L81DOI: 10.2298/FIL1803873K Isoperimetric inequalities for the Cauchy-Dirichlet heat operator 885 - 892 Tynysbek Sh Kal’menov, Aidyn Kassymov and Durvudkhan Suragan   AbstractKeywords: Cauchy-Dirichlet heat operator; s-number; Rayleigh-Faber-Krahn inequality; Hong-Krahn--Szegö inequality; Payne- Pólya-Weinberger inequalityMSC: 35P05; 58J50DOI: 10.2298/FIL1803885K On the high order convergence of the difference solution of Laplace's equation in a rectangular parallelepiped 893 - 901 Adiguzel A Dosiyev and Ahlam Abdussalam   AbstractKeywords: Finite difference method; approximation of the derivatives; error estimations; 3D Laplace’s equationMSC: 65M06; 65M12; 65M22DOI: 10.2298/FIL1803893D Isoperimetric inequalities for the heat potential operator 903 - 910 Tynysbek Sh Kal’menov, Aidyn Kassymov and Durvudkhan Suragan   AbstractKeywords: Heat potential operator; s-number; Rayleigh-Faber-Krahn inequality; Hong-Krahn-Szegö inequality; Schatten p-normMSC: 47G40; 47A30; 58J50DOI: 10.2298/FIL1803903K Some properties of eigenvalues and generalized eigenvectors of one boundary value problem 911 - 920 Hayati Olğar, Oktay Sh Mukhtarov and Kadriye Aydemir   AbstractKeywords: Boundary value problem; eigenvalues; generalized eigenvectorsMSC: 34B24; 34B09DOI: 10.2298/FIL1803911O Article page: <<12345>>

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