Instytut Matematyczny Polskiej Akademii Nauk / Institute of Mathematics / Publishing house / Journals and Serials / Fundamenta Mathematicae

Online First articles

• Cardinal characteristics associated with small subsets of reals Miguel A. Cardona, Adam Marton, Jaroslav Šupina Fundamenta Mathematicae MSC: Primary 03E17; Secondary 03E35, 03E05, 03E15 DOI: 10.4064/fm250317-14-3 Published online: 11 August 2026
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• Failure of the product and subgroup theorems for the covering dimension of topological groups Olga Sipacheva Fundamenta Mathematicae MSC: Primary 22A05; Secondary 54F45 DOI: 10.4064/fm250720-26-4 Published online: 7 September 2026
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• Non-representable quantum measures Alexandru Chirvasitu Fundamenta Mathematicae MSC: Primary 28A35; Secondary 28A60, 47A07, 81Q65 DOI: 10.4064/fm250910-3-4 Published online: 15 September 2026
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• The set-theoretic Kaufmann–Clote question Zachiri McKenzie Fundamenta Mathematicae MSC: Primary 03C63; Secondary 03H99 DOI: 10.4064/fm250717-23-2 Published online: 17 September 2026
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