Page 1

Displaying 1 – 18 of 18

Showing per page

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.

Lattice points in super spheres

Ekkehard Krätzel (1999)

Commentationes Mathematicae Universitatis Carolinae

In this article we consider the number R k , p ( x ) of lattice points in p -dimensional super spheres with even power k 4 . We give an asymptotic expansion of the d -fold anti-derivative of R k , p ( x ) for sufficiently large d . From this we deduce a new estimation for the error term in the asymptotic representation of R k , p ( x ) for p < k < 2 p - 4 .

Lp-bounds for spherical maximal operators on Zn.

Akos Magyar (1997)

Revista Matemática Iberoamericana

We prove analogue statements of the spherical maximal theorem of E. M. Stein, for the lattice points Zn. We decompose the discrete spherical measures as an integral of Gaussian kernels st,ε(x) = e2πi|x|2(t + iε). By using Minkowski's integral inequality it is enough to prove Lp-bounds for the corresponding convolution operators. The proof is then based on L2-estimates by analysing the Fourier transforms ^st,ε(ξ), which can be handled by making use of the circle method for exponential sums. As a...

Currently displaying 1 – 18 of 18

Page 1