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• Asymptotic joint spectra of Cartesian powers of strongly regular graphs and bivariate Charlier–Hermite polynomials John Vincent S. Morales, Nobuaki Obata, Hajime Tanaka Colloquium Mathematicum MSC: Primary 46L53; Secondary 60F05, 05E30, 33C45. DOI: 10.4064/cm7724-7-2019 Published online: 1 April 2020
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• New upper bounds for the number of divisors function Jean-Marie De Koninck, Patrick Letendre Colloquium Mathematicum MSC: 11N37, 11N56. DOI: 10.4064/cm7792-6-2019 Published online: 3 April 2020
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• Mahler coefficients of locally scaling transformations on $\mathbb{Z}_{p}$ Nacima Memić Colloquium Mathematicum MSC: Primary 11S82; Secondary 37A05. DOI: 10.4064/cm7810-6-2019 Published online: 8 April 2020
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• V-monotone independence Adrian Dacko Colloquium Mathematicum MSC: Primary 46L53; Secondary 05A18. DOI: 10.4064/cm7682-4-2019 Published online: 9 April 2020
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• Further generalisations of a classical theorem of Daboussi Jean-Marie De Koninck, Imre Kátai Colloquium Mathematicum MSC: Primary 11L07; Secondary 11N37. DOI: 10.4064/cm7961-10-2019 Published online: 10 April 2020
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• On the nearest irreducible lacunary neighbour to an integer polynomial Pradipto Banerjee, Ranjan Bera Colloquium Mathematicum MSC: Primary 11C08; Secondary 11R09, 12E05. DOI: 10.4064/cm7978-8-2019 Published online: 15 April 2020
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• Exceptional modules over wild canonical algebras Dawid Edmund Kędzierski, Hagen Meltzer Colloquium Mathematicum MSC: 16G20, 14F05, 16G60. DOI: 10.4064/cm7876-8-2019 Published online: 15 April 2020
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• Über die Winkel zwischen Unterräumen Nikolay Moshchevitin Colloquium Mathematicum MSC: Primary 11J13. DOI: 10.4064/cm7885-7-2019 Published online: 27 April 2020
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• Interpolation sets and nilsequences Anh N. Le Colloquium Mathematicum MSC: Primary 37A45; Secondary 11B30. DOI: 10.4064/cm7937-9-2019 Published online: 27 April 2020
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• Some properties of general orthonormal systems Vakhtang Tsagareishvili Colloquium Mathematicum MSC: Primary 42C10. DOI: 10.4064/cm7857-9-2019 Published online: 29 April 2020
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• Corrigendum to the paper “A new upper bound for odd perfect numbers of a special form” (Colloq. Math. 156 (2019), 15–23) Tomohiro Yamada Colloquium Mathematicum MSC: Primary 11A05, 11A25; Secondary 11D61, 11J86. DOI: 10.4064/cm8138-4-2020 Published online: 29 April 2020
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• A note on the spectrum of the Neumann Laplacian in thin periodic waveguides Carlos R. Mamani, Alessandra A. Verri Colloquium Mathematicum MSC: Primary 35P05; Secondary 35J10, 81Q10. DOI: 10.4064/cm7867-7-2019 Published online: 30 April 2020
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• On the classification of rational four-dimensional unital division algebras Gustav Hammarhjelm Colloquium Mathematicum MSC: Primary 17A35; Secondary 16K20. DOI: 10.4064/cm8021-11-2019 Published online: 4 May 2020
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• On the structure of graded Lie algebras of order 3 Elisabete Barreiro, A. J. Calderón, Rosa M. Navarro, José M. Sánchez Colloquium Mathematicum MSC: 17B99, 17B65, 17B05. DOI: 10.4064/cm7849-7-2019 Published online: 6 May 2020
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• Dynamics of homeomorphisms of regular curves Issam Naghmouchi Colloquium Mathematicum MSC: 37B05, 37B45, 37E99, 54H20. DOI: 10.4064/cm7825-9-2019 Published online: 8 May 2020
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• Simplicity of algebras via epsilon-strong systems Patrik Nystedt Colloquium Mathematicum MSC: Primary 16S99, 16W22, 16W55; Secondary 22A22, 37B05. DOI: 10.4064/cm7887-9-2019 Published online: 13 May 2020
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• A combinatorial proof of a stronger dense Hindman theorem Randall McCutcheon Colloquium Mathematicum MSC: Primary 05D10; Secondary 03C20. DOI: 10.4064/cm8106-12-2019 Published online: 14 May 2020
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• A simple proof of the complete metric approximation property for $q$-Gaussian algebras Mateusz Wasilewski Colloquium Mathematicum MSC: Primary 46L10; Secondary 46L65. DOI: 10.4064/cm7968-11-2019 Published online: 18 May 2020
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• Mad families of vector subspaces and the smallest nonmeager set of reals Iian B. Smythe Colloquium Mathematicum MSC: Primary 03E17; Secondary 15A03. DOI: 10.4064/cm8044-12-2019 Published online: 20 May 2020
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• The adjoint cotranspose of modules with respect to subcategories Yuxiao Wang, Guoqiang Zhao, Bo Zhang Colloquium Mathematicum MSC: Primary 18G25; Secondary 16E30. DOI: 10.4064/cm7900-9-2019 Published online: 25 May 2020
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• Old recurrence formulae for growth series of Coxeter groups Jan Dymara Colloquium Mathematicum MSC: Primary 20F55; Secondary 57M07. DOI: 10.4064/cm8109-12-2019 Published online: 25 May 2020
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• Cohomology and deformations of hom-dendriform algebras and coalgebras Apurba Das Colloquium Mathematicum MSC: 17A30, 17A99, 16E40. DOI: 10.4064/cm8049-10-2019 Published online: 27 May 2020
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• Semi-Kelley continua Alejandro Illanes Colloquium Mathematicum MSC: Primary 54F15; Secondary 54B20, 54F50. DOI: 10.4064/cm8053-11-2019 Published online: 1 June 2020
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