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A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,051 papers · 148 categories

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48 results for Brunn Minkowski theory

New Steiner formula for LpL_p affine surface area in Minkowski theory.

problem Developing a new Steiner formula for LpL_p affine surface area.
method Proving a new Steiner formula for the LpL_p affine surface area of a Minkowski outer parallel body.
result New curvature measures with properties not previously seen in literature.

This paper introduces the dual Orlicz-Brunn-Minkowski theory for star sets. A radial Orlicz addition of two or more star sets is proposed and a corresponding dual Orlicz-Brunn-Minkowski inequality is established. Based on a radial Orlicz linear combination of two star sets, a formula for the dual Orlicz mixed volume is…

2014-07-28abs ↗pdf ↗

Proves global LpL_p-Brunn-Minkowski inequality for specific pp range.

problem Establishing global LpL_p-Brunn-Minkowski inequality for pp in a specific range.
method Using local uniqueness results for the LpL_p-Minkowski problem and Logarithmic Minkowski problem.
result Global LpL_p-Brunn-Minkowski inequality proven for p(1c/n32,1)p\in(1-c/n^{\frac{3}{2}},1).

Analogues of the classical inequalities from the Brunn-Minkowski theory for rotation intertwining additive maps of convex bodies are developed. Analogues are also proved of inequalities from the dual Brunn-Minkowski theory for intertwining additive maps of star bodies. These inequalities provide generalizations of resu…

2012-07-31abs ↗pdf ↗

SubRiemannian structures fail to meet Riemannian Brunn--Minkowski inequalities.

problem SubRiemannian structures do not satisfy Riemannian Brunn--Minkowski inequalities.
method The proof relies on the method used for the Heisenberg group and new investigations by Agrachev, Barillari, and Rizzi on subRiemannian structures.
result No Brunn--Minkowski inequality can be satisfied by strictly subRiemannian structures.

Paper generalizes complex Brunn-Minkowski theory and proves new extension theorems.

problem Complex Brunn-Minkowski theory and extension theorems.
method Hilbert bundle approach to complex Brunn-Minkowski theory.
result Generalizes Guan's sharp strong openness theorem and sharp Ohsawa-Takegoshi extension theorem.

The hyperbolic space $ \H^d$ can be defined as a pseudo-sphere in the (d+1)(d+1) Minkowski space-time. In this paper, a Fuchsian group ΓΓ is a group of linear isometries of the Minkowski space such that $\H^d/Γ$ is a compact manifold. We introduce Fuchsian convex bodies, which are closed convex sets in Minkowski space, g…

2011-12-22abs ↗pdf ↗

Unified study of Brunn-Minkowski conjectures for log-concave measures.

problem Understanding the role of symmetry in inequalities of Brunn-Minkowski type.
method Unified framework, new results for conjectures, improved estimates for Lebesgue and Gaussian measures.
result Unified framework and new results for Brunn-Minkowski conjectures.

New weighted surface area measures for convex bodies with applications.

problem Generalizing surface area measures to weighted Borel measures.
method Formulating and analyzing weighted surface area measures, proving integral formula and Bézout-type inequality.
result New integral formula for mixed measure of three bodies, generalizing Bézout-type inequality.

Researchers prove uniqueness and continuity of solution to L_p dual Minkowski problem.

problem Proving uniqueness and continuity of solution to L_p dual Minkowski problem.
method Established new Minkowski-type inequalities related to optimization problem.
result Uniqueness and continuity of solution for general convex bodies when q<pq < p.

Study confirms equivalence in Heisenberg groups between curvature-dimension conditions and strong Brunn-Minkowski inequalities.

problem Equivalence between curvature-dimension conditions and strong Brunn-Minkowski inequalities in Heisenberg groups.
method Optimal transport and approximation techniques in sub-Riemannian Heisenberg group Hn, combined with previous works.
result Confirms the equivalence in Heisenberg groups between curvature-dimension conditions and strong Brunn-Minkowski inequalities.

Timelike curvature and Brunn-Minkowski inequality linked in non-smooth spacetimes.

problem Equivalence between timelike Ricci curvature and Brunn-Minkowski inequality in synthetic Lorentzian spaces.
method Introducing strong qq-timelike Brunn-Minkowski condition and proving equivalence to curvature conditions.
result Timelike curvature dimension condition equivalent to timelike Brunn-Minkowski inequality in specific settings.

The study generalizes Minkowski inequalities for curves on surfaces.

problem Generalizing Minkowski inequalities for curves on Riemannian surfaces.
method Introducing a generalized Minkowski average using parametrized curves and proving the inequality for constant-speed curves.
result A family of constant-speed curves on a Riemannian surface satisfies the Brunn-Minkowski inequality with respect to the Riemannian area form if and only if the geodesic curvature is determined by a function κ satisfying a specific inequality.

New proof of log-Brunn-Minkowski inequality for zonoids and convex bodies.

problem Proving the log-Brunn-Minkowski inequality for convex bodies and zonoids.
method Establishing monotonicity of the deficit in the LLBM under line segment addition.
result Equality in LLBM for smooth convex bodies occurs only for homothetic bodies.

The Orlicz-Brunn-Minkowski theory receives considerable attention recently, and many results in the LpL_p-Brunn-Minkowski theory have been extended to their Orlicz counterparts. The aim of this paper is to develop Orlicz LφL_φ affine and geominimal surface areas for single convex body as well as for multiple convex bod…

2014-03-07abs ↗pdf ↗

Paper proves Brunn-Minkowski inequality and curvature dimension condition are equivalent in weighted Riemannian manifolds.

problem Proving equivalence between Brunn-Minkowski inequality and curvature dimension condition.
method Analyzes weighted Riemannian manifolds, proving equivalence without optimal transport or differential structure.
result Brunn-Minkowski inequality and curvature dimension condition are equivalent in weighted Riemannian manifolds.

Paper proves uniqueness of solutions to a geometric inequality problem.

problem Uniqueness of solutions to the isotropic LpL_p Minkowski problem.
method Analysis of the Hilbert-Brunn-Minkowski operator LKL_K to derive stability estimates.
result Uniqueness of S2S_2-isotropic solutions to the isotropic LpL_p Minkowski problem in Rn\mathbb{R}^{n} for specific ranges of pp.

The present note is a result of an on-going investigation into the logarithmic Brunn-Minkowski inequality. We obtain lower estimates on the volume product for convex bodies in Rn\mathbb{R}^n not necessarily symmetric with respect to the origin from a modified logarithmic Brunn-Minkowski inequality.

2014-04-30abs ↗pdf ↗

New geometric inequalities for convex bodies derived from Log-Brunn-Minkowski conjecture.

problem Proving geometric inequalities for convex bodies.
method Analyzing semi-norms and symmetric convex bodies, using integral inequalities.
result Characterization and improvement of geometric inequalities involving convex bodies.

The paper discusses rigidity results for inequalities on weighted Riemannian manifolds.

problem Rigidity of inequalities on weighted Riemannian manifolds.
method Theorems of rigidity on curvature and measure for the Borell-Brascamp-Lieb inequality, generalizing a theorem by Balogh and Kristály.
result A generalization of the curvature rigidity theorem to the weighted setting.

New insights from centro-affine geometry solve a key geometric conjecture.

problem Log-Brunn-Minkowski conjecture in centro-affine differential geometry.
method Interpreting the log-Brunn-Minkowski conjecture as a spectral problem and using centro-affine differential geometry.
result Global uniqueness and inequalities in the log-Minkowski problem for certain convex bodies.

We prove that the log-Brunn-Minkowski inequality \begin{equation*} |λK+_0 (1-λ)L|\geq |K|^λ|L|^{1-λ} \end{equation*} (where |\cdot| is the Lebesgue measure and +0+_0 is the so-called log-addition) holds when KRnK\subset\mathbb{R}^n is a ball and LL is a symmetric convex body in a suitable C2C^2 neighborhood of KK.

2017-10-29abs ↗pdf ↗

A Steiner type formula for continuous translation invariant Minkowski valuations is established. In combination with a recent result on the symmetry of rigid motion invariant homogeneous bivaluations, this new Steiner type formula is used to obtain a family of Brunn-Minkowski type inequalities for rigid motion intertwi…

2012-07-31abs ↗pdf ↗

Paper solves Minkowski problem for non-compact convex sets with asymptotic boundary conditions.

problem Solving Minkowski problem for non-compact convex sets with asymptotic boundary conditions.
method Combining covolume, Hadamard variational formula, and geometric interpretation.
result Solved Minkowski problem for non-compact convex sets under asymptotic conditions.

The space of Minkowski valuations on an m-dimensional complex vector space which are continuous, translation invariant and contravariant under the complex special linear group is explicitly described. Each valuation with these properties is shown to satisfy geometric inequalities of Brunn-Minkowski, Aleksandrov-Fenchel…

2011-01-31abs ↗pdf ↗

The paper solves a geometric problem using curvature flow and variational methods.

problem The LpL_p-Gaussian Minkowski problem in the Euclidean space.
method Gauss curvature flow and Aleksandrov's variational method with Lagrange multipliers.
result The flow converges to a smooth solution of the LpL_p-Gaussian Minkowski problem.

Extends dual volume and curvature measures to broader functions and sets, solving Minkowski problems.

problem Characterize measures for which there exists a convex body with a given dual Orlicz curvature measure.
method Extends dual volume and curvature measures to broader functions and sets, proving existence and existence of solutions for Minkowski problems.
result Existence of convex polytopes and solutions for Minkowski problems when measures are discrete or even.

New Orlicz Brunn-Minkowski inequalities are established for rigid motion compatible Minkowski valuations of arbitrary degree. These extend classical log-concavity properties of intrinsic volumes and generalize seminal results of Lutwak and others. Two different approaches which refine previously employed techniques are…

2014-11-28abs ↗pdf ↗