Higher degree Galois covers of .
Amram, Meirav, Goldberg, David (2004)
Algebraic & Geometric Topology
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Amram, Meirav, Goldberg, David (2004)
Algebraic & Geometric Topology
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Hirose, Susumu (2005)
Algebraic & Geometric Topology
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Bobtcheva, Ivelina, Messia, Maria Grazia (2003)
Algebraic & Geometric Topology
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Marius Van der Put (1997-1998)
Séminaire Bourbaki
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Hirose, Susumu (2002)
Algebraic & Geometric Topology
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Mellor, Blake, Melvin, Paul (2003)
Algebraic & Geometric Topology
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Manfred Streit, Jürgen Wolfart (2000)
Revista Matemática Complutense
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We describe a new invariant for the action of the absolute Galois groups on the set of Grothendieck dessins. It uses the fact that the automorphism groups of regular dessins are isomorphic to automorphism groups of the corresponding Riemman surfaces and define linear represenatations of the space of holomorphic differentials. The characters of these representations give more precise information about the action of the Galois group than all previously known invariants, as it is shown...
Andreas-Stephan Elsenhans, Jörg Jahnel (2010)
Open Mathematics
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We present a method to construct non-singular cubic surfaces over ℚ with a Galois invariant double-six. We start with cubic surfaces in the hexahedral form of L. Cremona and Th. Reye. For these, we develop an explicit version of Galois descent.
Frank Loray, Marius van der Put, Felix Ulmer (2008)
Annales de la faculté des sciences de Toulouse Mathématiques
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This paper deals with rank two connections on the projective line having four simple poles with prescribed local exponents 1/4 and . This Lamé family of connections has been extensively studied in the literature. The differential Galois group of a Lamé connection is never maximal : it is either dihedral (finite or infinite) or reducible. We provide an explicit moduli space of those connections having a free underlying vector bundle and compute the algebraic locus of those reducible...
David Eisenbud, Noam Elkies, Joe Harris, Robert Speiser (1991)
Compositio Mathematica
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