8 papers
Prescribed projections for a general class of maps and efficient covering by variable plane curves
Alan Chang, Robert Fraser, Alex McDonald +2
We prove a prescribed projection theorem for any class of non-linear projections defined on open subsets of the plane which satisfies some mild geometric conditions. This generaliz…
Norm rigidity and equality cases for the Dyn--Farkhi inequality
Mark Meyer
For a convex body that is symmetric with respect to the origin, and for a nonempty set , we study the -Hausdorff distance from conve…
L_p-Rogers--Shephard type inequalities for L_p-zonoids and symmetric bodies
Matthieu Fradelizi, Auttawich Manui, Mark Meyer +1
We study generalizations of the classical Rogers--Shephard inequalities in the framework of Firey -summation. We first consider the class of asymmetric -zonoids. In this…
Equality cases for the -Rogers--Shephard inequality in the plane and for locally anti-blocking bodies in
Matthieu Fradelizi, Auttawich Manui, Mark Meyer +1
The classical Rogers--Shephard inequalities were extended to the Firey -summation by Bianchini and Colesanti in the plane and by Zvavitch and the second and fourth authors for…
A sharp -subadditive bound for the Hausdorff distance from convex hull
Mark Meyer
We study the Hausdorff distance from convex hull, which for a compact set is defined by \begin{align*} d^{(\ell_p)}(A):=\sup_{x\in \text{conv}(A)}\…
The Dyn-Farkhi conjecture and the convex hull of a sumset in two dimensions
Mark Meyer
For a compact set in the Hausdorff distance from to is defined by \begin{equation*} d(A):=\sup_{a\in\text{conv}(A)}\inf_{x\in A}|x-a|, \end{…
Measuring the convexity of compact sumsets with the Schneider non-convexity index
Mark Meyer
In recent work, Franck Barthe and Mokshay Madiman introduced the concept of the Lyusternik region, denoted by , to better understand volumes of sumsets. They gave a chara…
Equality conditions for the fractional superadditive volume inequalities
Mark Meyer
While studying set function properties of Lebesgue measure, F. Barthe and M. Madiman proved that Lebesgue measure is fractionally superadditive on compact sets in . I…