Research articles

• Topological and metric properties of sets of real numbers with conditions on their expansions in Ostrogradskii series

  O. M. Baranovskyi, M. V. Pratsiovytyi, H. M. Torbin

  1155–1168

  • PDF (Українська)
  • Springer
• Rate of convergence to ergodic distribution for queue length in systems of the $M^{θ}/G/1/N$

  A. M. Bratiychuk

  1169–1178

  • PDF (Українська)
  • Springer
• General Kloosterman sums over ring of Gaussian integers

  S. P. Varbanets

  1179-1200

  • PDF
  • Springer
• Approximation of ( ψ, β )-differentiable functions defined on the real axis by Weierstrass operators

  I. V. Kalchuk

  1201–1220

  • PDF (Українська)
  • Springer
• On moduli of smoothness and Fourier multipliers in $L_p, 0 < p < 1$

  Yu. S. Kolomoitsev

  1221–1238

  • PDF (Русский)
  • Springer
• Invariants of knots, surfaces in R ₃, and foliations

  L. P. Plakhta

  1239–1252

  • PDF (Українська)
  • Springer
• Approximation of holomorphic functions by Taylor-Abel-Poisson means

  V. V. Savchuk

  1253–1260

  • PDF (Українська)
  • Springer
• On Schur classes for modules over group rings

  N. N. Semko, V. A. Chupordya

  1261–1268

  • PDF (Русский)
  • Springer
• Expansion of weighted pseudoinverse matrices with singular weights into matrix power products and iteration methods

  E. F. Galba, V. S. Deineka, I. V. Sergienko

  1269–1289

  • PDF (Русский)
  • Springer
• Stability of a dynamical system with semi-Markov switchings under conditions of diffusion approximation

  Ya. M. Chabanyuk

  1290–1296

  • PDF (Українська)
  • Springer