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Calder\'on's inverse conductivity problem has, so far, only been subject to conditional logarithmic stability for infinite-dimensional classes of conductivities and to Lipschitz stability when restricted to finite-dimensional classes.…

Analysis of PDEs · Mathematics 2026-02-18 Henrik Garde , Markus Hirvensalo , Nuutti Hyvönen

We obtain a uniform stability of recovering entire functions of a special form from their zeros. To this form, one can reduce the characteristic determinants of strongly regular differential operators and pencils of the first and the second…

Spectral Theory · Mathematics 2021-10-04 Sergey Buterin

We generalize the hyperplane inequality in dimensions up to 4 to the setting of arbitrary measures in place of the volume. To prove this generalization we establish stability in the affirmative part of the solution to the Busemann-Petty…

Metric Geometry · Mathematics 2011-02-22 Alexander Koldobsky

In this paper we motivate some new directions of research regarding the lattice width of convex bodies. We show that convex bodies of sufficiently large width contain a unimodular copy of a standard simplex. This implies that every lattice…

Combinatorics · Mathematics 2019-11-12 Gennadiy Averkov , Johannes Hofscheier , Benjamin Nill

This paper studies the fundamental properties of the high-order forward-backward splitting mapping (HiFBS) and its associated forward-backward envelope (HiFBE) through the lens of high-order regularization for nonconvex composite functions.…

Optimization and Control · Mathematics 2025-11-14 Alireza Kabgani , Masoud Ahookhosh

We provide an estimate of the distance (in the dual flat seminorm) of the normal cycles of convex bodies with given Hausdorff distance. We also give an estimate (in the bounded Lipschitz metric) of the support measures of convex bodies.

Metric Geometry · Mathematics 2013-10-08 Daniel Hug , Rolf Schneider

Using techniques from harmonic analysis, we derive several sharp stability estimates for the second order Heisenberg Uncertainty Principle. We also present the explicit lower and upper bounds for the sharp stability constants and compute…

Analysis of PDEs · Mathematics 2025-12-23 Anh Xuan Do , Nguyen Lam , Guozhen Lu

Extending Blaschke and Lebesgue's classical result in the Euclidean plane, it has been recently proved in spherical and the hyperbolic cases, as well, that Reuleaux triangles have the minimal area among convex domains of constant width $D$.…

Metric Geometry · Mathematics 2022-04-01 Karoly J. Boroczky , Adam Sagmeister

We prove an estimate for arbitrary measure of sections of convex bodies. The proof is based on a stability result for intersection bodies.

Metric Geometry · Mathematics 2013-09-23 Alexander Koldobsky

This paper contains a number of results related to volumes of projective perturbations of convex bodies and the Laplace transform on convex cones. First, it is shown that a sharp version of Bourgain's slicing conjecture implies the Mahler…

Metric Geometry · Mathematics 2018-03-02 Bo'az Klartag

We introduce and study a new notion of stability for varieties fibered over curves, motivated by Koll\'ar's stability for homogeneous polynomials with integral coefficients. We develop tools to study geometric properties of stable…

Algebraic Geometry · Mathematics 2021-08-17 Hamid Abban , Maksym Fedorchuk , Igor Krylov

In this paper, extending the work of Gal'perin (Comm. Math. Phys. 154: 63-84, 1993), we investigate generalizations of the concepts of centroids and static equilibrium points of a convex body in spherical, hyperbolic and normed spaces. In…

Metric Geometry · Mathematics 2026-02-11 Z. Lángi , S. Wang

We show that for the regular n-simplex, the 1-codimensional central slice that's parallel to a facet will achieve the minimum area (up to a 1-o(1) factor) among all 1-codimensional central slices, thus improving the previous best known…

Metric Geometry · Mathematics 2024-06-24 Colin Tang

Robustness and stability of image-reconstruction algorithms have recently come under scrutiny. Their importance to medical imaging cannot be overstated. We review the known results for the topical variational regularization strategies…

Optimization and Control · Mathematics 2023-01-24 Pol del Aguila Pla , Sebastian Neumayer , Michael Unser

We introduce a strong notion of quasiconvexity in finitely generated groups, which we call stability. Stability agrees with quasiconvexity in hyperbolic groups and is preserved under quasi-isometry for finitely generated groups. We show…

Geometric Topology · Mathematics 2015-11-25 Matthew Gentry Durham , Samuel J. Taylor

In this paper, we present sharp stability results for various reverse isoperimetric problems in $\mathbb R^2$. Specifically, we prove the stability of the reverse isoperimetric inequality for $\lambda$-convex bodies -- convex bodies with…

Differential Geometry · Mathematics 2026-01-07 Kostiantyn Drach , Kateryna Tatarko

We prove that the boundary of a (not necessarily connected) bounded smooth set with constant nonlocal mean curvature is a sphere. More generally, and in contrast with what happens in the classical case, we show that the Lipschitz constant…

Analysis of PDEs · Mathematics 2015-03-03 Giulio Ciraolo , Alessio Figalli , Francesco Maggi , Matteo Novaga

Let a random simplex in a d-dimensional convex body be the convex hull of d+1 random points from the body. We study the following question: As a function of the convex body, is the expected volume of a random simplex monotone non-decreasing…

Probability · Mathematics 2014-01-14 Luis Rademacher

We treat the stability of determining the boundary impedance of an obstacle by scattering data, with a single incident field. A previous result by Sincich (SIAM J. Math. Anal. 38, (2006), 434-451) showed a log stability when the boundary of…

Analysis of PDEs · Mathematics 2014-04-16 Giovanni Alessandrini , Eva Sincich , Sergio Vessella

This article is dedicated to the study of diagonal hyperbolic systems in one space dimension, with cumulative distribution functions, or more generally nonconstant monotonic bounded functions, as initial data. Under a uniform strict…

Analysis of PDEs · Mathematics 2015-07-07 Benjamin Jourdain , Julien Reygner