Research articles

• Lyapunov-type inequalities for a nonlinear system including operators

  Mustafa Fahri Aktaş, Başak Ecem Bingül

  475 - 486

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• Biharmonic continuations of gradients with the help of monogenic functions with values in the biharmonic algebra

  S. Gryshchuk

  487 - 501

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• On some domains of convergence of branched continued-fraction expansions of the ratios of Horn hypergeometric functions $H_4$

  R. Dmytryshyn, I.-A. Lutsiv, M. Dmytryshyn, C. Cesarano

  502 - 508

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• Essays on the spectral properties of the polynomially perturbed Hermite operator

  V. Makarov

  509 - 514

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• A refinement of Schwarz's lemma at the boundary

  Bülent Nafi Örnek

  515 - 524

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• Third Hankel determinant for the class of analytic functions defined by Mathieu-type series related to a petal-shaped domain

  T. Panigrahi, E. Pattnayak, R. M. El-Ashwah

  525 - 532

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• Two-dimensional nonisotropic surfaces with flat normal connection and a nondegenerate Grassmann image of constant curvature in the Minkowski space

  P. Stegantseva, M. Grechneva

  533 - 551

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• Measure pseudoasymptotically Bloch periodic functions in the sense of Stepanov and applications

  Youssef Khemili, Mohsen Miraoui, Mounir Ben Salah

  552 - 567

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• Numerical continued fraction interpolation

  Oliver Salazar Celis

  568 - 580

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• Crossed modules with action

  Selim Çetin, Utku Gürdal

  581 - 598

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• On the finiteness of the $l$-$\mathfrak{M}$-index of entire functions represented by series in а system of functions

  M. Sheremeta

  599 - 606

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• On the Berezin number of operators on the reproducing kernel of Hilbert space and related questions

  Ulaş Yamancı, Ismail M. Karlı

  607 - 616

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• Optimal matching parameters of the inverse Hilbert-type integral inequality with quasihomogeneous kernels and their applications

  Yong Hong, Mingjun Feng, Bing He

  617 - 628

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