Results 21 to 30 of about 671 (71)

Orlicz difference bodies

open access: yesOpen Mathematics, 2018
In this paper, by the Orlicz-Minkowski combinations of convex bodies, we define the general Orlicz difference bodies and study their properties. Furthermore, we obtain the extreme values of the general Orlicz difference bodies and their polars.
Shi Wei, Wang Weidong, Ma Tongyi
doaj   +1 more source

On the polyhedral cones of convex and concave vectors [PDF]

open access: yes, 2013
Convex or concave sequences of n positive terms, viewed as vectors in n-space, constitute convex cones with 2n − 2 and n extreme rays, respectively.
Foldes, Stephan, Major, Laszlo
core   +2 more sources

On the perimeters of simple polygons contained in a disk

open access: yes, 2010
A simple $n$-gon is a polygon with $n$ edges with each vertex belonging to exactly two edges and every other point belonging to at most one edge. Brass asked the following question: For $n \geq 5$ odd, what is the maximum perimeter of a simple $n$-gon ...
C. Audet, P. Brass, Zsolt Lángi
core   +1 more source

A Blichfeldt-type inequality for centrally symmetric convex bodies

open access: yes, 2012
In this note, we derive an asymptotically sharp upper bound on the number of lattice points in terms of the volume of centrally symmetric convex bodies.
Henze, Matthias
core   +1 more source

Approximate Gaussian isoperimetry for k sets [PDF]

open access: yes, 2011
Given $2\le k\le n$, the minimal $(n-1)$-dimensional Gaussian measure of the union of the boundaries of $k$ disjoint sets of equal Gaussian measure in $\R^n$ whose union is $\R^n$ is of order $\sqrt{\log k}$.
Schechtman, Gideon
core   +2 more sources

Sharp affine weighted L 2 Sobolev inequalities on the upper half space

open access: yesAdvanced Nonlinear Studies
We establish some sharp affine weighted L 2 Sobolev inequalities on the upper half space, which involves a divergent operator with degeneracy on the boundary.
Dou Jingbo, Hu Yunyun, Yue Caihui
doaj   +1 more source

A remark on perimeter-diameter and perimeter-circumradius inequalities under lattice constraints [PDF]

open access: yes, 2013
In this note, we study several inequalities involving geometric functionals for lattice point-free planar convex sets.
Henze, Matthias   +1 more
core  

Optimal Concentration of Information Content For Log-Concave Densities

open access: yes, 2015
An elementary proof is provided of sharp bounds for the varentropy of random vectors with log-concave densities, as well as for deviations of the information content from its mean.
A. Prékopa   +18 more
core   +1 more source

The Fenchel-type inequality in the 3-dimensional Lorentz space and a Crofton formula

open access: yes, 2016
We generalize the Fenchel theorem to strong spacelike (which means that the tangent vector and the curvature vector span a spacelike 2-plane at each point) closed curves with index 1 in the 3-dimensional Lorentz space, showing that the total curvatures ...
Ma, Xiang, Wang, Donghao, Ye, Nan
core   +1 more source

Minimality of planes in normed spaces

open access: yes, 2012
We prove that a region in a two-dimensional affine subspace of a normed space $V$ has the least 2-dimensional Hausdorff measure among all compact surfaces with the same boundary.
A.C. Thompson   +12 more
core   +1 more source

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