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Klein polyhedra and lattices with positive norm minima

Oleg N. German (2007)

Journal de Théorie des Nombres de Bordeaux

A Klein polyhedron is defined as the convex hull of nonzero lattice points inside an orthant of n . It generalizes the concept of continued fraction. In this paper facets and edge stars of vertices of a Klein polyhedron are considered as multidimensional analogs of partial quotients and quantitative characteristics of these “partial quotients”, so called determinants, are defined. It is proved that the facets of all the 2 n Klein polyhedra generated by a lattice Λ have uniformly bounded determinants...

Lamination et antilamination des réseaux euclidiens

Marc Gindraux (2009)

Journal de Théorie des Nombres de Bordeaux

Dans cet article, nous étudions certains invariants liés à la réduction de Hermite-Korkine-Zolotareff des réseaux euclidens (ou des formes quadratiques définies positives).

Lattice Points.

Antonio Córdoba (1997)

The journal of Fourier analysis and applications [[Elektronische Ressource]]

Lattice points in some special three-dimensional convex bodies with points of Gaussian curvature zero at the boundary

Ekkehard Krätzel (2002)

Commentationes Mathematicae Universitatis Carolinae

We investigate the number of lattice points in special three-dimensional convex bodies. They are called convex bodies of pseudo revolution, because we have in one special case a body of revolution and in another case even a super sphere. These bodies have lines at the boundary, where all points have Gaussian curvature zero. We consider the influence of these points to the lattice rest in the asymptotic representation of the number of lattice points.

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