Vol. 13 No. 3 (2021)

Scientific articles

• Interpolational $(L,M)$-rational integral fraction on a continual set of nodes

  Ya.O. Baranetskij, I.I. Demkiv, M.I. Kopach, A.V. Solomko

  587-591

  • Article

• Approximation of functions of several variables by multidimensional $S$-fractions with independent variables

  R.I. Dmytryshyn, S.V. Sharyn

  592-607

  • Article

• Asymmetric circular graph with Hosoya index and negative continued fractions

  T. Komatsu

  608-618

  • Article

• Parabolic convergence regions of branched continued fractions of the special form

  D.I. Bodnar, I.B. Bilanyk

  619-630

  • Article

• Asymptotic properties of Urysohn type generalized sampling operators

  H. Karsli

  631-641

  • Article

• On convergence of branched continued fraction expansions of Horn's hypergeometric function $H_3$ ratios

  T.M. Antonova

  642-650

  • Article

• Approximation properties of modified Jain-Gamma operators

  S. Erdogan, A. Olgun

  651-665

  • Article

• Approximation properties of multivariate exponential sampling series

  S. Kurşun, M. Turgay, O. Alagöz, T. Acar

  666-675

  • Article

• Recovery of continuous functions of two variables from their Fourier coefficients known with error

  K.V. Pozharska, A.A. Pozharskyi

  676-686

  • Article

• Direct and inverse theorems on the approximation of almost periodic functions in Besicovitch-Stepanets spaces

  A.S. Serdyuk, A.L. Shidlich

  687-700

  • Article

• Application of symmetric analytic functions to spectra of linear operators

  I. Burtnyak, I. Chernega, V. Hladkyi, O. Labachuk, Z. Novosad

  701-710

  • Article

• Fixed points of hesitant fuzzy set-valued maps with applications

  M.S. Shagari, A. Azam

  711-726

  • Article

• Lipschitz symmetric functions on Banach spaces with symmetric bases

  M.V. Martsinkiv, S.I. Vasylyshyn, T.V. Vasylyshyn, A.V. Zagorodnyuk

  727-733

  • Article

• Lupaş post quantum Bernstein operators over arbitrary compact intervals

  A. Khan, M. Iliyas, M.S. Mansoori, M. Mursaleen

  734-749

  • Article

• Approximation by trigonometric polynomials in the variable exponent weighted Morrey spaces

  Z. Cakir, C. Aykol, V.S. Guliyev, A. Serbetci

  750-763

  • Article

• A solution of the fractional differential equations in the setting of $b$-metric space

  H. Afshari, E. Karapinar

  764-774

  • Article

• Generalization of Szász operators: quantitative estimate and bounded variation

  K. Bozkurt, M.L. Limmam, A. Aral

  775-789

  • Article

• An efficient hybrid technique for the solution of fractional-order partial differential equations

  H.K. Jassim, H. Ahmad, A. Shamaoon, C. Cesarano

  790-804

  • Article

• The use of the isometry of function spaces with different numbers of variables in the theory of approximation of functions

  D.M. Bushev, F.G. Abdullayev, I.V. Kal'chuk, M. Imashkyzy

  805-817

  • Article

• Convergence properties of generalized Lupaş-Kantorovich operators

  M. Qasim, A. Khan, Z. Abbas, M. Mursaleen

  818-830

  • Article

• Non-symmetric approximations of functional classes by splines on the real line

  N.V. Parfinovych

  831-837

  • Article

• Approximation of classes of periodic functions of several variables with given majorant of mixed moduli of continuity

  O.V. Fedunyk-Yaremchuk, S.B. Hembars'ka

  838-850

  • Article

• Approximation characteristics of the isotropic Nikol'skii-Besov functional classes

  S.Ya. Yanchenko, O.Ya. Radchenko

  851-861

  • Article