Vol. 28 No. 2 (2026)

Articles

• A primitive associated with the Cantor–Bendixson derivative on Polish spaces

  Andrés Merino, Sebastián Heredia Freire

  227-245

  • PDF

• Series with Harmonic numbers and the tail of \(\zeta(2)\)

  Ovidiu Furdui, Alina Sîntămărian

  247-260

  • PDF

• Cyclic covers of an algebraic curve from an Adelic viewpoint

  Luis Manuel Navas Vicente, Francisco J. Plaza Martín

  261-293

  • PDF

• Applying the Riemann surfaces with extremal configurations of symmetries to the study of the real nerve of the moduli space of Riemann surfaces of odd genera

  Ewa Kozłowska-Walania, Leonard Sikorski

  295-321

  • PDF

• Multivariate symmetrized, \(q\)-deformed and \(\lambda\)-parametrized hyperbolic tangent induced complex valued trigonometric and hyperbolic neural network enhanced approximation

  George A. Anastassiou

  323-347

  • PDF

• Rings in which every ideal disjoint with \(S\) is \(S\)-almost prime

  Chahrazade Bakkari, Rachid Hachache, Najib Mahdou, Unsal Tekir, Ece Yetkin Celikel

  349-362

  • PDF

• Persistence of a tumor spheroid with an almost periodic nutrient supply

  Homero G. Díaz-Marín, Osvaldo Osuna, Geiser Villavicencio-Pulido

  363-381

  • PDF