Research articles

• Generalized (n, d)-ray systems of points and inequalities for nonoverlapping domains and open sets

  A. K. Bakhtin, A. L. Targonskii

  867-879

  • PDF (Русский)
  • Springer
• Structure of nodal algebras

  D. E. Voloshyn

  880-879

  • PDF (Українська)
  • Springer
• Relative Chebyshev point of a system of continuously varying bounded closed sets

  Yu. V. Hnatyuk

  889-903

  • PDF (Українська)
  • Springer
• On the stability of abstract monotone impulsive differential equations in terms of two measures

  A. I. Dvirnyi, V. I. Slyn'ko

  904-923

  • PDF (Русский)
  • Springer
• Existence criteria and asymptotics for some classes of solutions of essentially nonlinear second-order differential equations

  V. M. Evtukhov, A. A. Koz'ma

  924-938

  • PDF (Русский)
  • Springer
• Approximation of functions from the classes $C^{\psi}_{\beta, \infty}$ by biharmonic Poisson integrals

  K. M. Zhyhallo, Yu. I. Kharkevych

  939-959

  • PDF (Українська)
  • Springer
• On necessary conditions for the convergence of Fourier series

  O. V. Ivashchuk, P. V. Zaderei

  960-968

  • PDF (Русский)
  • Springer
• Sharp upper bounds of norms of functions and their derivatives on classes of functions with given comparison function

  V. A. Kofanov

  969-984

  • PDF (Русский)
  • Springer
• Volterra quadratic stochastic operators of a two-sex population

  U. U. Zhamilov, U. A. Rozikov

  985-998

  • PDF (Русский)
  • Springer
• Estimates for weighted eigenvalues of fourth-order elliptic operator with variable coefficients

  He-Jun Sun

  999-1008

  • PDF
  • Springer