Vol. 18 No. 1 (2026)

Scientific articles

• Namioka property of generalized ordered spaces

  O. Karlova

  5-10

  • Article

• On the maximal term of series in systems of functions in a disk

  M.M. Sheremeta, M.S. Dobushovskyy

  11-18

  • Article

• An application for dynamic programming via fixed point theorem using rational type

  A.S. Özkapu, Ö. Acar

  19-28

  • Article

• Automorphisms of the endomorphism semigroup of a free monogenic strict $n$-tuple semigroup

  A.V. Zhuchok

  29-35

  • Article

• Certain characteristics of 2-variable $q$-truncated Tricomi functions

  M. Fadel, N. Raza, C. Cesarano, P. Agarwal

  36-48

  • Article

• Subsymmetric functions on Banach spaces with subsymmetric bases

  D. Dolishniak, V. Kravtsiv

  49-66

  • Article

• Entire functions of several variables: behaviour of directional derivatives

  A.I. Bandura, S.I. Dubei, T.M. Salo, O.B. Skaskiv

  67-77

  • Article

• Topological isomorphism of a countably generated algebra of entire functions on $\ell_\infty$ and the algebra of symmetric entire functions on $L_{\infty}^2[0,1]$

  S.I. Vasylyshyn

  78-98

  • Article

• Non-existence of co-spectral simple connected graphs with small number of edges

  O. Boyko, D. Kaliuzhnyi-Verbovetskyi, V. Pivovarchik

  99-110

  • Article