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Front Page FilomatPublisher: Faculty of Sciences and Mathematics, NišISSN: 0354-5180Issue: 36_13Date: 2022Journal Homepage
 

Extended eigenvalues of a closed linear operator 4277 - 4291
Aymen Ammar, Fatima Zohra Boutaf and Aref Jeribi  
AbstractKeywords: Extended eigenvalue; Eigenoperator; Essential spectrum; 2 × 2 Block matrixMSC: 11B05; 47A53; 39B42DOI: 10.2298/FIL2213277A
A class of integral operators induced by harmonic Bergman-Besov kernels on Lebesgue classes 4293 - 4317
Ömer Faruk Doğan  
AbstractKeywords: Integral operator; Harmonic Bergman-Besov kernel; Harmonic Bergman-Besov space; Weighted harmonic Bloch space; Harmonic Bergman-Besov projection; Schur test; Forelli-Rudin estimate; Inclusion relationMSC: 47B34; 47G10; 31B05; 31B10; 42B35; 45P05; 47B32; 46E20; 46E15DOI: 10.2298/FIL2213293D
L-weakly and M-weakly demicompact operators on Banach lattices 4319 - 4329
Hedi Benkhaled, Mohamed Hajji and Aref Jeribi  
AbstractKeywords: Banach lattice; Order continuous norm; L-weakly compact operator; M-weakly compact operator; Demicompact operator; Order weakly demicompact operator; mandatoryMSC: 46B07; 46B42; 47B50DOI: 10.2298/FIL2213319B
Β-matrices and β-tensors 4331 - 4338
H Orera and J M Peña  
AbstractKeywords: positive determinants; P-matrices; P-tensorsMSC: 15A15; 15A69; 15B48DOI: 10.2298/FIL2213331O
Sequences of nonlinear quasi contractions and fixed points 4339 - 4346
Kieu Phuong Chi, Erdal Karapinar and Tran Duc Thanh  
AbstractKeywords: Fixed point theorems; sequence of contraction; quasi contractionMSC: 47H09; 47H10DOI: 10.2298/FIL2213339C
From fuzzy scalar Henstock to fuzzy scalar McShane integrability 4347 - 4361
Redouane Sayyad and Said El Ouahbi  
AbstractKeywords: Real McShane integral; KH-integral; Generalised fuzzy number; Fuzzy scalar McShane integral; Fuzzy scalar Henstock integralMSC: 28B05; 46G10; 26E50; 28E10; 03E72DOI: 10.2298/FIL2213347S
On σ-amenability of TσA, σB 4363 - 4373
Alireza Jaberi, Behrouz Shojaee and Amin Mahmoodi  
AbstractKeywords: Amenability; weak amenability; Triangular Banach AlgebrasMSC: 46H25; 16E40; 43A20DOI: 10.2298/FIL2213363J
Kuelbs-Steadman spaces with bounded variable exponents 4375 - 4384
Hemanta Kalita  
AbstractKeywords: Kuelbs-Steadman spaces; Reflexivity; uniform convexity; Dense embeddings; Maximal operatorsMSC: 46E30; 46E35; 46B20; 46A80DOI: 10.2298/FIL2213375K
Self-adjoint perturbations of left (right) weyl spectrum for upper triangular operator matrices 4385 - 4395
Xiufeng Wu, Junjie Huang and Alatancang Chen  
AbstractKeywords: upper triangular operator matrix; self-adjoint operator; left (right) Weyl operator; Hamiltonian operatorMSC: 47A53; 47A55; 47B99DOI: 10.2298/FIL2213385W
On a class of Toeplitz and little Hankel operators on L2 a (U + ) 4397 - 4415
Namita Das and Sworup Kumar Das  
AbstractKeywords: Bergman space; Upper half plane; Toeplitz operators; Little Hankel operators; Weighted composition operatorsMSC: 30H20; 47B35DOI: 10.2298/FIL2213397D
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