Vol. 23 No. 1 (2019)

Articles

• Spectrum and genus of commuting graphs of some classes of finite rings

  Jutirekha Dutta, Walaa Nabil Taha Fasfous, Rajat Kanti Nath

  5-12

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• Pseudo-symmetric structures on almost Kenmotsu manifolds with nullity distributions

  U. C. De, Dibakar Dey

  13-24

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• Some Hermite–Hadamard and Ostrowski type inequalities for fractional integral operators with exponential kernel

  Hüseyin Budak, Mehmet Zeki Sarikaya, Fuat Usta, Hüseyin Yildirim

  25-36

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• Some (p, q)-analogues of Apostol type numbers and polynomials

  Mehmet Acikgoz, Serkan Araci, Ugur Duran

  37-50

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• Fejér type integral inequalities related with geometrically-arithmetically convex functions with applications

  S. S. Dragomir, M. A. Latif, E. Momoniat

  51-64

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• Lucas numbers of the form (2t/k)

  Nurettin Irmak, László Szalay

  65-70

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• Estimations of Riemann–Liouville k-fractional integrals via convex functions

  Ghulam Farid

  71-78

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• Notes on certain analytic functions concerning some subordinations

  Şahsene Altınkaya, Shigeyoshi Owa, Sibel Yalçin

  79-85

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• A new approach in topology via elements of an ideal

  Erdal Ekici

  87-94

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• About the convergence type of improper integrals defining fractional derivatives

  B. Kalam, G. Vainikko

  95-102

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• An Eneström–Kakeya theorem for new classes of polynomials

  William Ty Frazier, Robert Gardner

  103-115

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• A new characterization of symplectic groups C2(3n)

  Behnam Ebrahimzadeh, Reza Mohammadyari

  117-124

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• Comparison of machine learning methods for crack localization

  Helle Hein, Ljubov Jaanuska

  125-142

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• Natural vibrations of stepped nanobeams with defects

  Jaan Lellep, Artur Lenbaum

  143-158

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