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Contents of Volume 66

• The Knaster–Tarski theorem versus monotone nonexpansive mappings Rafael Espínola, Andrzej Wiśnicki Bulletin Polish Acad. Sci. Math. 66 (2018), 1-7 MSC: Primary 06A45, 54F05; Secondary 34A12, 46B20. DOI: 10.4064/ba8120-1-2018
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• Continued fractions and polynomials related to hyperbinary representations Karl Dilcher, Larry Ericksen Bulletin Polish Acad. Sci. Math. 66 (2018), 9-29 MSC: Primary 11B83; Secondary 11A55, 11B37, 11B75. DOI: 10.4064/ba8126-12-2017
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• Infinite families of congruences modulo 5 and 9 for overpartitions Chao Gu, Michael D. Hirschhorn, James A. Sellers, Ernest X. W. Xia Bulletin Polish Acad. Sci. Math. 66 (2018), 31-44 MSC: 11P83, 05A17. DOI: 10.4064/ba8129-9-2017
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• Dynamical quasitilings of amenable groups Tomasz Downarowicz, Dawid Huczek Bulletin Polish Acad. Sci. Math. 66 (2018), 45-55 MSC: Primary 37B05; Secondary 37B50. DOI: 10.4064/ba8128-1-2018
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• Super-easy quantum groups: definition and examples Teodor Banica Bulletin Polish Acad. Sci. Math. 66 (2018), 57-68 MSC: Primary 46L65. DOI: 10.4064/ba8133-2-2018
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• On Nörlund summation and ergodic theory, with applications to power series of Hilbert contractions Christophe Cuny, Michel Weber Bulletin Polish Acad. Sci. Math. 66 (2018), 69-85 MSC: 47A35, 47B37. DOI: 10.4064/ba8121-12-2017
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• Reduced spherical convex bodies Marek Lassak, Michał Musielak Bulletin Polish Acad. Sci. Math. 66 (2018), 87-97 MSC: Primary 52A55. DOI: 10.4064/ba8088-1-2018
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• On pseudocompactness and light compactness of metric spaces in $\mathbf {ZF}$ Kyriakos Keremedis Bulletin Polish Acad. Sci. Math. 66 (2018), 99-113 MSC: 03E25, 54D30. DOI: 10.4064/ba8131-10-2018
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• Dimension-theoretical results for a family of generalized continued fractions Jörg Neunhäuserer Bulletin Polish Acad. Sci. Math. 66 (2018), 115-122 MSC: 11J70, 11K50, 26A18. DOI: 10.4064/ba8157-7-2018
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• On the fractal structure of attainable probability measures Andrea Sartori Bulletin Polish Acad. Sci. Math. 66 (2018), 123-133 MSC: Primary 11Z05. DOI: 10.4064/ba8161-9-2018
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• Minimal growth function of uniform amenability for discrete abelian groups Paweł Witowicz Bulletin Polish Acad. Sci. Math. 66 (2018), 135-141 MSC: Primary 20F65; Secondary 20K21, 05A20. DOI: 10.4064/ba8149-5-2018
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• Discrete data assimilation algorithm for the three-dimensional Leray-$\alpha $ model Cung The Anh, Bui Huy Bach Bulletin Polish Acad. Sci. Math. 66 (2018), 143-156 MSC: 35Q35, 37C50, 76B75, 93C20. DOI: 10.4064/ba8162-11-2018
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• Universal sets for ideals Aleksander Cieślak, Marcin Michalski Bulletin Polish Acad. Sci. Math. 66 (2018), 157-166 MSC: Primary 54H05; Secondary 03E57. DOI: 10.4064/ba8146-5-2018
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• Nonexistence of smooth effective one fixed point actions of finite Oliver groups on low-dimensional spheres Agnieszka Borowiecka, Piotr Mizerka Bulletin Polish Acad. Sci. Math. 66 (2018), 167-177 MSC: Primary 57S17; Secondary 57S25. DOI: 10.4064/ba8150-9-2018
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• Exact strong laws of large numbers for independent random fields Paweł Kurasiński, Przemysław Matuła, André Adler Bulletin Polish Acad. Sci. Math. 66 (2018), 179-188 MSC: Primary 60F15; Secondary 60G60. DOI: 10.4064/ba8153-9-2018
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