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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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• Full mad families of vector spaces and two local Ramsey theories Clement Yung Fundamenta Mathematicae MSC: Primary 03E15; Secondary 15A03 DOI: 10.4064/fm250607-18-3 Published online: 21 September 2026
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• A small Radon–Nikodým compact space from a parametrized diamond Arturo Martínez-Celis, Adam Morawski Fundamenta Mathematicae MSC: Primary 03E35; Secondary 54A35, 54D30, 03E17 DOI: 10.4064/fm251021-2-3 Published online: 21 September 2026
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• Meromorphic functions whose action on their Julia sets is non-ergodic Tao Chen, Yunping Jiang, Linda Keen Fundamenta Mathematicae MSC: Primary 37F10; Secondary 30F05, 30D05, 37A30 DOI: 10.4064/fm241227-7-5 Published online: 23 September 2026
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