Tame and Galois extensions with respect to Hopf orders.
N.P. Byott (1995)
Mathematische Zeitschrift
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N.P. Byott (1995)
Mathematische Zeitschrift
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Mamoru Asada (1985)
Mathematische Annalen
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Yoichi Miyashita (1984)
Mathematische Zeitschrift
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M. Madan, M. Rzedowski-Calderón (1996)
Manuscripta mathematica
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Martin Epkenhans (1997)
Acta Arithmetica
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Let mℤd ≀ mℤd ≀ mℤd ≀ m
Gunter Malle (1991)
Manuscripta mathematica
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David A. Clark (1996)
Manuscripta mathematica
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K.-H. Ulbrich (1987)
Manuscripta mathematica
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Szeto, George, Xue, Lianyong (2000)
International Journal of Mathematics and Mathematical Sciences
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Masakazu Yamagishi (1993)
Journal für die reine und angewandte Mathematik
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Michailov, Ivo (2007)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 12F12. We find the obstructions to realizability of groups of order 32 as Galois groups over arbitrary field of characteristic not 2. We discuss explicit extensions and automatic realizations as well. This work is partially supported by project of Shumen University
Teresa Crespo (1995)
Mathematica Scandinavica
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Anand Pillay (2002)
Banach Center Publications
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We make some observations relating the theory of finite-dimensional differential algebraic groups (the ∂₀-groups of [2]) to the Galois theory of linear differential equations. Given a differential field (K,∂), we exhibit a surjective functor from (absolutely) split (in the sense of Buium) ∂₀-groups G over K to Picard-Vessiot extensions L of K, such that G is K-split iff L = K. In fact we give a generalization to "K-good" ∂₀-groups. We also point out that the "Katz group" (a certain linear...
Ford, David, Pohst, Michael, Daberkow, Mario, Haddad, Nasser (1998)
Experimental Mathematics
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