On the existence of universal rational structures for groups.
Grigorenko, O.V., Roman'kov, V.A. (2007)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Grigorenko, O.V., Roman'kov, V.A. (2007)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Sozutov, A.I. (2000)
Siberian Mathematical Journal
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Rubashkin, A.G., Filippov, K.A. (2005)
Sibirskij Matematicheskij Zhurnal
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Mazurov, V. D. (2003)
Sibirskij Matematicheskij Zhurnal
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Popov, A.M. (2006)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Isaeva, O.V., Medvedev, N.Ya. (2000)
Siberian Mathematical Journal
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Khisamiev, N.G. (2009)
Sibirskij Matematicheskij Zhurnal
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Ballester-Bolinches, Adolfo, Calvo, Clara (2009)
Sibirskij Matematicheskij Zhurnal
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Popov, A.M. (2006)
Sibirskie Ehlektronnye Matematicheskie Izvestiya [electronic only]
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Chirkov, I.V., Shevelin, M.A. (2000)
Siberian Mathematical Journal
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Kenzi Satô (1998)
Acta Arithmetica
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For every positive rational number q, we find a free group of rotations of rank 2 acting on (√q𝕊²) ∩ ℚ³ whose all elements distinct from the identity have no fixed point.
Chirkov, I.V., Shevelin, M.A. (2001)
Sibirskij Matematicheskij Zhurnal
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Budkin, A.I., Taranina, L.V. (2000)
Siberian Mathematical Journal
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Jian Song, E. Tymchatyn (2000)
Fundamenta Mathematicae
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A space Y is called a free space if for each compactum X the set of maps with hereditarily indecomposable fibers is a dense -subset of C(X,Y), the space of all continuous functions of X to Y. Levin proved that the interval I and the real line ℝ are free. Krasinkiewicz independently proved that each n-dimensional manifold M (n ≥ 1) is free and the product of any space with a free space is free. He also raised a number of questions about the extent of the class of free spaces. In this...
M. S. Audu, A. Afolabi, E. Apine (2006)
Kragujevac Journal of Mathematics
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Zavarnitsin, A.V. (2002)
Sibirskij Matematicheskij Zhurnal
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