Results 1 to 10 of about 34 (34)

Isoperimetric and Brunn-Minkowski inequalities for the (p, q)-mixed geominimal surface areas

open access: yesOpen Mathematics, 2022
Motivated by the celebrated work of Lutwak, Yang and Zhang [1] on (p,q)\left(p,q)-mixed volumes and that of Feng and He [2] on (p,q)\left(p,q)-mixed geominimal surface areas, we in the present paper establish and confirm the affine isoperimetric and ...
Zhang Juan, Wang Weidong, Zhao Peibiao
doaj   +1 more source

Some inequalities for star duality of the radial Blaschke-Minkowski homomorphisms

open access: yesOpen Mathematics, 2020
In 2006, Schuster introduced the radial Blaschke-Minkowski homomorphisms. In this article, associating with the star duality of star bodies and dual quermassintegrals, we establish Brunn-Minkowski inequalities and monotonic inequality for the radial ...
Zhao Xia, Wang Weidong, Lin Youjiang
doaj   +1 more source

Iterations of the projection body operator and a remark on Petty’s conjectured projection inequality [PDF]

open access: yes, 2018
Mathematics subject classification; 52A20, 53A15, 52A39 ...
Saroglou, Christos, Zvavitch, Artem
core   +1 more source

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

Spectral Polyhedra

open access: yesForum of Mathematics, Sigma
A spectral convex set is a collection of symmetric matrices whose range of eigenvalues forms a symmetric convex set. Spectral convex sets generalize the Schur-Horn orbitopes studied by Sanyal–Sottile–Sturmfels (2011). We study this class of convex bodies,
Raman Sanyal, James Saunderson
doaj   +1 more source

Lorentzian polynomials on cones

open access: yesForum of Mathematics, Sigma
Inspired by the theory of hyperbolic polynomials and Hodge theory, we develop the theory of Lorentzian polynomials on cones. This notion captures the Hodge-Riemann relations of degree zero and one.
Petter Brändén, Jonathan Leake
doaj   +1 more source

Equality cases of the Alexandrov–Fenchel inequality are not in the polynomial hierarchy

open access: yesForum of Mathematics, Pi
Describing the equality conditions of the Alexandrov–Fenchel inequality [Ale37] has been a major open problem for decades. We prove that in the case of convex polytopes, this description is not in the polynomial hierarchy unless the polynomial hierarchy ...
Swee Hong Chan, Igor Pak
doaj   +1 more source

Geometric properties of the family of p-parallel bodies

open access: yesAnalysis and Geometry in Metric Spaces
We study geometric properties of the family of p-parallel bodies of a convex body K with respect to a gauge body E. In particular, we investigate various regularity properties of their boundaries by means of their 0-extreme vectors, aiming for extensions
Hernández Cifre María A.   +2 more
doaj   +1 more source

Some inequalities for Lp radial Blaschke-Minkowski homomorphisms1

open access: yes, 2019
The notion of radial Blaschke-Minkowski homomorphisms was presented by Schuster. Afterwards, Wang et al. introduced Lp radial Blaschke-Minkowski homomorphisms.
Wang, Weidong, Chen, Bin
core  

Balancing the Lifting Values to Improve the Numerical Stability of Polyhedral Homotopy Continuation Methods

open access: yes, 1997
Polyhedral homotopy continuation methods exploit the sparsity of polynomial systems so that the number of solution curves to reach all isolated solutions is optimal for generic systems.
Jan Verschelde   +3 more
core  

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