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Given an Euclidean space, this paper elucidates the topological link between the partial derivatives of the Minkowski functional associated to a set (assumed to be compact, convex, with a differentiable boundary and a non-empty interior)…

Differential Geometry · Mathematics 2024-07-18 Gustave Bainier , Benoit Marx , Jean-Christophe Ponsart

In semialgebraic geometry, projections play a prominent role. A definable choice is a semialgebraic selection of one point in every fiber of a projection. Definable choices exist by semialgebraic triviality, but their complexity depends…

Algebraic Geometry · Mathematics 2025-03-11 Antonio Lerario , Luca Rizzi , Daniele Tiberio

The author introduces the concept of harmonically s-convex functions and establishes some Ostrowski type inequalities and Hermite-Hadamard type inequality of these classes of functions.

Classical Analysis and ODEs · Mathematics 2013-07-22 Imdat Iscan

We give a partial answer to an important open problem in descriptive set theory, the Decomposability Conjecture for Borel functions on an analytic subset of a Polish space to a separable metrizable space. Our techniques employ deep results…

Logic · Mathematics 2016-05-27 Vassilios Gregoriades , Takayuki Kihara , Keng Meng Ng

Identifiability, and the closely related idea of partial smoothness, unify classical active set methods and more general notions of solution structure. Diverse optimization algorithms generate iterates in discrete time that are eventually…

Optimization and Control · Mathematics 2024-06-24 Adrian Lewis , Tonghua Tian

We give an effective estimation from above for the local {\L}ojasiewicz exponent for separation of semialgebraic sets and for a semialgebraic mapping on a closed semialgebraic set. We also give an effective estimation from below of the…

Algebraic Geometry · Mathematics 2014-12-17 Krzysztof Kurdyka , Stanisław Spodzieja , Anna Szlachcińska

In this article, we establish Hoeffding's inequality for bounded Lipschitz functions of a class of not necessarily irreducible Markov models. The result complements the existing literature on this topic where Hoeffding's inequality for…

Probability · Mathematics 2021-11-30 Nikola Sandric , Stjepan Sebek

In this work, an extension of two-point Ostrowski's formula for $n$-times differentiable functions is proved. A generalization of Taylor formula is deduced. An identity of Fink type for this extension is provided. Error estimates for the…

Classical Analysis and ODEs · Mathematics 2019-05-24 Mohammad W. Alomari

We establish concentration inequalities for Lipschitz functions of dependent random variables, whose dependencies are specified by forests. We also give concentration results for decomposable functions, improving Janson's Hoeffding-type…

Probability · Mathematics 2021-11-01 Rui-Ray Zhang

The purpose of this paper is to develop some methods to study Riesz type inequalities, Hardy-Littlewood type theorems and smooth moduli of holomorphic, pluriharmonic and harmonic functions in high-dimensional cases. Initially, we prove some…

Functional Analysis · Mathematics 2022-09-15 Shaolin Chen , Hidetaka Hamada

We prove the closedness theorem over Henselian valued fields, which was established over rank one valued fields in one of our recent papers. In the proof, as before, we use the local behaviour of definable functions of one variable and the…

Algebraic Geometry · Mathematics 2017-04-05 Krzysztof Jan Nowak

In this paper we present an abstract convergence analysis of inexact descent methods in Riemannian context for functions satisfying Kurdyka-Lojasiewicz inequality. In particular, without any restrictive assumption about the sign of the…

Numerical Analysis · Mathematics 2011-03-25 G. C. Bento , J. X. da Cruz Neto , P. R. Oliveira

For a real analytic complex vector field $L$ in an open set of $\mathbb{R}^2$, with local first integrals that are open maps, we attach a number $\mu \ge 1$ (obtained through Lojasiewicz inequalities) and show that the equation $Lu=f$ has…

Analysis of PDEs · Mathematics 2022-05-03 Abdelhamid Meziani

This paper is devoted to present new error bounds of regularized gap functions for polynomial variational inequalities with exponents explicitly determined by the dimension of the underlying space and the number/degree of the involved…

Optimization and Control · Mathematics 2020-03-24 Dinh Bui Van , Tien-Son Pham

We consider limit sets of some conformal iterated function systems, and introduce classes of subsets of the limit set, with the property that the classes are closed under countable intersections and all sets in the classes have large…

Dynamical Systems · Mathematics 2009-12-07 David Färm , Tomas Persson

Let h = \sum h_{\alpha \beta} X^\alpha Y^\beta be a polynomial with complex coefficients. The Lojasiewicz exponent of the gradient of h at infinity is the upper bound of the set of all real \lambda such that |grad h(x, y)| >=…

Complex Variables · Mathematics 2009-09-25 Andrzej Lenarcik

In this paper we prove a gap phenomenon for critical points of the $H$-functional on closed non-spherical surfaces when $H$ is constant, and in this setting furthermore prove that sequences of almost critical points satisfy {\L}ojasiewicz…

Analysis of PDEs · Mathematics 2023-04-24 Andrea Malchiodi , Melanie Rupflin , Ben Sharp

For any scalar-valued bivariate function that is locally Lipschitz continuous and directionally differentiable, it is shown that a subgradient may always be constructed from the function's directional derivatives in the four compass…

Optimization and Control · Mathematics 2023-06-22 Kamil A. Khan , Yingwei Yuan

It is shown in the present article that the Minkowski function does not preserve the Hausdorff-Besicovitch dimension. Results of this article were presented by the author of this article on the Second Interuniversity Scientific Conference…

Classical Analysis and ODEs · Mathematics 2018-03-22 Symon Serbenyuk

In this paper, a new identity for fractional integrals is established. Then by making use of the established identity, some new Ostrowski type inequalities for harmonically s-convex functions via Riemann--Liouville fractional integral are…

Classical Analysis and ODEs · Mathematics 2014-01-03 Imdat Iscan