Hermite's constant for quadratic number fields.
Baeza, Ricardo, Coulangeon, Renaud, Icaza, Maria Ines, O'Ryan, Manuel (2001)
Experimental Mathematics
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Baeza, Ricardo, Coulangeon, Renaud, Icaza, Maria Ines, O'Ryan, Manuel (2001)
Experimental Mathematics
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François Sigrist (2000)
Journal de théorie des nombres de Bordeaux
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Voronoï ’s algorithm is a method for obtaining the complete list of perfect -dimensional quadratic forms. Its generalization to -forms has the advantage of running in a lower-dimensional space, and furnishes a finite, and complete, classification of -perfect forms ( is a finite subgroup of . We study the standard, -dimensional irreducible representation of the cyclic group of order , and give the, often new, densest -forms. Perfect cyclotomic forms are completely classified...
D.W. Hoffmann, J. Van Geel (1995)
Manuscripta mathematica
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Konrad Jałowiecki, Przemysław Koprowski (2016)
Banach Center Publications
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This paper presents algorithms for quadratic forms over a formally real algebraic function field K of one variable over a fixed real closed field k. The algorithms introduced in the paper solve the following problems: test whether an element is a square, respectively a local square, compute Witt index of a quadratic form and test if a form is isotropic/hyperbolic. Finally, we remark on a method for testing whether two function fields are Witt equivalent.
Victor Baston (1969)
Acta Arithmetica
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Baeza, Ricardo (2001)
Documenta Mathematica
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R.A. Rankin (1964)
Mathematische Zeitschrift
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Wieb Bosma, Peter Stevenhagen (1996)
Journal de théorie des nombres de Bordeaux
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We describe an algorithm due to Gauss, Shanks and Lagarias that, given a non-square integer mod and the factorization of , computes the structure of the -Sylow subgroup of the class group of the quadratic order of discriminant in random polynomial time in .
Andrzej Białynicki-Birula, Andrzej Schinzel (2010)
Acta Arithmetica
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Mireille Car (2004)
Acta Arithmetica
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Kazimierz Szymiczek (1975)
Acta Arithmetica
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