Vol. 51 No. 1 (2026)

Articles

• Teichmüller extremal maps on infinite Riemann surfaces

  Dragomir Šarić

  3–16

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• Logarithmic upper bound for weak subsolutions to the fractional Laplace equation

  Zheng Li

  17–30

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• Maximal operators and differentiation associated to collections of shifted convex bodies

  Emma D'Aniello, Laurent Moonens, Giorgi Oniani

  31–40

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• Spaces of sequences not converging to zero

  Mikaela Aires, Geraldo Botelho

  41–58

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• Derivations and Sobolev functions on extended metric-measure spaces

  Enrico Pasqualetto, Janne Taipalus

  59–111

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• On the uniqueness of the Norton–Sullivan quasiconformal extension

  Jose A. Barrionuevo, Felipe Gonçalves, Jose Victor Medeiros, Lucas Oliveira

  113–126

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• On the fiber product of noncompact Riemann surfaces

  John A. Arredondo, Saúl Quispe, Camilo Ramírez Maluendas

  127–144

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• Geometric characterizations of freely quasiconformal mappings in real Banach spaces

  Manzi Huang, Xiantao Wang, Zhiqiang Yang

  145–162

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• Sharp Poincaré–Wirtinger inequalities on complete graphs

  Cristian González-Riquelme, José Madrid

  163–175

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• Compactness of commutators of rough singular integrals

  Aapo Laukkarinen, Jaakko Sinko

  177–195

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• Corrosion detection by identification of a nonlinear Robin boundary condition

  David Johansson

  197–221

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• Banach–Lamperti theorem for the Kurzweil–Henstock integral

  Thierry De Pauw

  123–236

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