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FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 37_15Date: 2023Journal Homepage Editorial BoardImpressum   On the Eneström-Kakeya theorem for quaternionic polynomial 4981 - 4990 Adil Hussain   AbstractKeywords: Quaternionic polynomial; Eneström-Kakeya theorem; ZerosMSC: 30E10; 30G35; 16K20DOI: 10.2298/FIL2315981H Nodal solutions for singular semilinear elliptic systems 4991 - 5003 Abdelkrim Moussaoui   AbstractKeywords: Laplacian; Singular systems; Nodal solutions; Sub-supersolutions; Truncation; Nonvariational problemMSC: 35J75; 35J91; 35B99; 35J61DOI: 10.2298/FIL2315991M Approximation by a modification of operators of exponential type associated with the Baskakov operators 5005 - 5015 Gunjan Agrawal and Man Singh Beniwal   AbstractKeywords: Exponential type approximation operators; Baskakov basis function; Modulus of continuity; Asymptotic formula; Difference estimateMSC: 41A25DOI: 10.2298/FIL2315005A The group inverse and Moore-Penrose inverse of the product of two elements and generalized inverse in a ring with involution 5017 - 5025 Anqi Li and Junchao Wei   AbstractKeywords: EP element; Partial isometry; SEP element; Normal element; Hermitian element; Group inverse; Moore-Penrose inverseMSC: 16B99; 16W10; 46L05DOI: 10.2298/FIL2315017L On strongly r-ideals on commutative rings and some related graphs 5027 - 5038 Khaled Alhazmy, Fuad Ali Ahmed Almahdi, El Mehdi Bouba and Mohammed Tamekkante   AbstractKeywords: (Strongly) r-ideals; Total ring of fractions; The zero-divisor graph; McCoy ringsMSC: 13A15; 13E05; 13F20DOI: 10.2298/FIL2315027A Right ꬲ-core inverse and the related generalized inverses in rings 5039 - 5051 Yuanyuan Ke, Long Wang, Jiahui Liang and Ling Shi   AbstractKeywords: Core inverse; Right core inverse; Right pseudo core inverse; Right e core inverse; Right e pseudo core inverseMSC: 15A09; 16W10DOI: 10.2298/FIL2315039K Characterizations of weaker forms of the Rothberger and Menger properties in hyperspaces 5053 - 5063 Ricardo Cruz-Castillo, Alejandro Ramírez-Páramo and Jesús F Tenorio   AbstractKeywords: Almost Rothberger (Menger); Groupable cover; Hit-and-miss topologies; Hyperspaces; Selection principles; Weakly groupable cover; Weakly Rothberger (Menger)MSC: 54B20; 54A05; 54A25; 54D20DOI: 10.2298/FIL2315053C Accuracy measure of rough membership multiset functions with application 5065 - 5074 S A El-Sheikh, Eman Said and Marwa Ellakany   AbstractKeywords: Rough set; Approximation space; Membership function; Multiset; AccuracyMSC: 54A05; 54-11DOI: 10.2298/FIL2315065E On variants of θ-Menger spaces 5075 - 5085 Gaurav Kumar and Brij K Tyagi   AbstractKeywords: Menger space; θ-Menger space; θ-continuity; S-paracompact; Extremally disconnected spaceMSC: 54D20; 54A10; 54D10DOI: 10.2298/FIL2315075K On topological gyrogroups 5087 - 5093 Piyu Li and Rongxin Shen   AbstractKeywords: Topological gyrogroup; Strongly topological gyrogroup; Paratopological gyrogroupMSC: 54A20; 54A20;DOI: 10.2298/FIL2315087L Article page: <<123>>

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