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Front Page Publications de l'Institut MathématiquePublisher: Matematički institut SANU, BeogradISSN: 0350-1302Issue: (N.S.) 104 (118)Date: 2018Journal Homepage

Estimates for holomorphic functions concerned with Jack's lemma 231 - 240
Bülent Nafi Örnek  
AbstractKeywords: holomorphic function; Schwarz lemma on the boundary; Jack's lemma; angular limit; angular derivativeMSC: 30C80 32A10DOI: https://doi.org/10.2298/PIM1818231O
Harmonic beta-convex functions involving hypergeometric functions 241 - 249
Muhammad Aslam Noor, Khalida Inayat Noor and Sabah Iftikhar  
AbstractKeywords: harmonic convex function; beta-convex function; hypergeometric function; Hermite-Hadamard type inequalityMSC: 26D15; 26D10; 90C23DOI: https://doi.org/10.2298/PIM1818241N
Approximation of signals (functions) of $\operatorname{Lip}(\alpha,p),(p\geq1)$-class by trigonometric polynomials 251 - 264
Kejal Khatri and Vishnu Narayan Mishra  
AbstractKeywords: $\operatorname{Lip}(\alpha;p); (p\geq1)$-class; means of Fourier series; almost monotone sequence; modulus of continuity; more general classes of triangular matrix methods; $C_{\lambda}$MSC: 40C05; 40D25; 40G05; 41A25; 42A10DOI: https://doi.org/10.2298/PIM1818251K
Exponential spline approach for the solution of nonlinear fourth-order boundary value problems 265 - 279
Pooja Khandelwal and Arshad Khan  
AbstractKeywords: exponential sextic spline; nonlinear boundary value problems; convergence analysis; truncation errorMSC: 65L10DOI: https://doi.org/10.2298/PIM1818265K
Polar decomposition of the Aluthge transformation in Hilbert $C^*$-modules 281 - 288
Mahnaz Chakoshi  
AbstractKeywords: polar decomposition; Aluthge transformation; Hilbert $C^*$-moduleMSC: 46L08 47A05DOI: https://doi.org/10.2298/PIM1818281C
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