A GAP package for braid orbit computation and applications.
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Magaard, Kay, Shpectorov, Sergey, Völklein, Helmut (2003)
Experimental Mathematics
Ido Efrat (1991)
Forum mathematicum
Pierre Dèbes, Jean-Claude Douai (1997)
Annales scientifiques de l'École Normale Supérieure
Moshe Jarden (1991)
Compositio Mathematica
Pierre Dèbes, Dan Haran (1999)
Acta Arithmetica
This paper is devoted to some variants of the Hilbert specialization property. For example, the RG-hilbertian property (for a field K), which arose in connection with the Inverse Galois Problem, requires that the specialization property holds solely for extensions of K(T) that are Galois and regular over K. We show that fields inductively obtained from a real hilbertian field by adjoining real pth roots (p odd prime) are RG-hilbertian; some of these fields are not hilbertian. There are other variants...
Florent Jouve, Emmanuel Kowalski, David Zywina (2008)
Journal de Théorie des Nombres de Bordeaux
Using the principle that characteristic polynomials of matrices obtained from elements of a reductive group over typically have splitting field with Galois group isomorphic to the Weyl group of , we construct an explicit monic integral polynomial of degree whose splitting field has Galois group the Weyl group of the exceptional group of type .
Jürgen Klüners (2006)
Journal de Théorie des Nombres de Bordeaux
We study the asymptotics conjecture of Malle for dihedral groups of order , where is an odd prime. We prove the expected lower bound for those groups. For the upper bounds we show that there is a connection to class groups of quadratic number fields. The asymptotic behavior of those class groups is predicted by the Cohen–Lenstra heuristics. Under the assumption of this heuristic we are able to prove the expected upper bounds.
Ján Mináč, Andrew Schultz, John Swallow (2008)
Journal de Théorie des Nombres de Bordeaux
We establish automatic realizations of Galois groups among groups , where is a cyclic group of order for a prime and is a quotient of the group ring .
Helmut Völklein (1994)
Forum mathematicum
Teresa Crespo (1994)
Acta Arithmetica
Granboulan, Louis (1996)
Experimental Mathematics
Orlando Cau (2012)
Journal de Théorie des Nombres de Bordeaux
Nous nous intéressons aux composantes irréductibles des espaces de modules de G-revêtements et à leurs corps de définition. Nos résultats permettent de construire, quel que soit le groupe fini, de telles composantes définies sur . Notre méthode laisse de plus une grande latitude quant au type de ramification des revêtements. Ces composantes sont obtenues par déformation de certains revêtements du bord des espaces de modules. Enfin, ces composantes sont aussi compatibles dans une tour d’espaces...
Roger Ware, Ján Minác (1991)
Manuscripta mathematica
Jones, G. (1995)
Séminaire Lotharingien de Combinatoire [electronic only]
Nikolaj Tschebotaröw (1934)
Commentarii mathematici Helvetici
Teresa Crespo, Zbigniew Hajto (2002)
Annales de l’institut Fourier
An effective construction of homogeneous linear differential equations of order 2 with Galois group or is presented.
Gunter Malle (1992)
Journal für die reine und angewandte Mathematik
Frank Häfner (1992)
Mathematische Annalen
H. Pahlings (1991)
Rendiconti del Seminario Matematico della Università di Padova
Michel Emsalem (1995)
Bulletin de la Société Mathématique de France
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