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We consider functions with an asymptotic mean value property, known to characterize harmonicity in Riemannian manifolds, in doubling metric measure spaces. We show that the strongly amv-harmonic functions are H\"older continuous for any…

Analysis of PDEs · Mathematics 2023-01-18 Tomasz Adamowicz , Antoni Kijowski , Elefterios Soultanis

We discuss a parabolic version of the space of functions of bounded mean oscillation related to a doubly nonlinear parabolic partial differential equation. Parabolic John-Nirenberg inequalities, which give exponential decay estimates for…

Classical Analysis and ODEs · Mathematics 2022-02-15 Juha Kinnunen , Kim Myyryläinen , Dachun Yang

On the set $\mathcal M$ of mean functions the symmetric mean of $M$ with respect to mean $M_0$ can be defined in several ways. The first one is related to the group structure on $\mathcal M$ and the second one is defined trough Gauss'…

Classical Analysis and ODEs · Mathematics 2023-03-10 Lenka Mihoković

Mean value properties of solutions to the $m$-dimensional Helmholtz and modified Helmholtz equations are considered. An elementary derivation of these properties is given; it involves the Euler--Poisson--Darboux equation. Despite the…

Analysis of PDEs · Mathematics 2021-05-21 Nikolay Kuznetsov

The aim of this note is to characterize all pairs of sufficiently smooth functions for which the mean value in the Cauchy Mean Value Theorem is taken at a point which has a well-determined position in the interval. As an application of this…

Classical Analysis and ODEs · Mathematics 2015-08-04 Zoltan M. Balogh , Orif O. Ibrogimov , Boris S. Mityagin

There exist two major subclasses in the class of superquadratic functions, one comprises concave and decreasing functions, while the other consists of convex and monotone increasing functions. Leveraging this distinction, we introduce…

Functional Analysis · Mathematics 2024-03-19 Mohsen Kian

In this paper, we prove Smale's mean value conjecture by making use of quasiconformal deformations and holomorphic motions.

Complex Variables · Mathematics 2017-04-04 Yuefei Wang

In this paper we prove a criterion for plurisubharmonic functions in terms of integral mean by complex ellipsoids. Moreover, by using the criterion we prove an analogue of Blaschke-Privalov theorem for plurisubharmonic functions.

Complex Variables · Mathematics 2021-05-25 Karim Rakhimov , Shomurod Shopulatov

We begin by recalling the definition of nonnegative quasinearly subharmonic functions on locally uniformly homogeneous spaces. Recall that these spaces and this function class are rather general: among others subharmonic, quasisubharmonic…

Analysis of PDEs · Mathematics 2011-01-28 Juhani Riihentaus

Newton's method has been an important approach for solving variational inequalities, quasi-Newton method is a good alternative choice to save computational cost. In this paper, we propose a new method for solving monotone variational…

Optimization and Control · Mathematics 2025-05-20 Yuge Ye , Qingna Li , Deren Han

Simple inequalities are established for some integrals involving the modified Bessel functions of the first and second kind. In most cases these inequalities are tight in certain limits. As a consequence, we deduce a tight double…

Classical Analysis and ODEs · Mathematics 2019-04-23 Robert E. Gaunt

Motivated by the mean value property of harmonic functions, we introduce the local and global median value properties for continuous functions of two variables. We show that the Dirichlet problem associated with the local median value…

Analysis of PDEs · Mathematics 2011-08-08 Matthew B. Rudd , Heather A. Van Dyke

In this paper, we give some definitions on quasi-convex functions and we prove inequalities contain J-quasi-convex and W-quasi-convex functions. We give also some inclusions.

Classical Analysis and ODEs · Mathematics 2010-12-17 M. Emin Ozdemir , Ahmet Ocak Akdemir , Cetin Yildiz

Inequalities among symmetric functions are fundamental in various branches of mathematics, thus motivating a systematic study of their structure. Majorization has been shown to characterize inequalities among commonly used symmetric…

Symbolic Computation · Computer Science 2026-04-22 Jia Xu , Yong Yao

Two criteria for the robust quasiconvexity of lower semicontinuous functions are established in terms of Fr\'echet subdifferentials in Asplund spaces.

Functional Analysis · Mathematics 2018-04-20 Hoa T. Bui , Pham Duy Khanh , Tran Thi Tu Trinh

We study the problem of approximating plurisubharmonic functions on a bounded domain $\Omega$ by continuous plurisubharmonic functions defined on neighborhoods of $\bar\Omega$. It turns out that this problem can be linked to the problem of…

Complex Variables · Mathematics 2012-11-07 Lisa Hed , Håkan Persson

Sublinear functionals of random variables are known as sublinear expectations; they are convex homogeneous functionals on infinite-dimensional linear spaces. We extend this concept for set-valued functionals defined on measurable set-valued…

Probability · Mathematics 2021-01-15 Ilya Molchanov , Anja Mühlemann

The purpose of this article is to present a new regularization technique of quasi-plurisubharmoinc functions on a compact Kaehler manifold. The idea is to regularize the function on local coordinate balls first, and then glue each piece…

Differential Geometry · Mathematics 2017-05-23 Long Li

We consider weakly and strongly asymptotically mean value harmonic (amv-harmonic) functions on subriemannian and RCD settings. We demonstrate that, in non-collapsed RCD-spaces with vanishing metric measure boundary, Cheeger harmonic…

Differential Geometry · Mathematics 2023-01-18 Tomasz Adamowicz , Antoni Kijowski , Elefterios Soultanis

A classical problem in number theory is showing that the mean value of an arithmetic function is asymptotic to its mean value over a short interval or over an arithmetic progression, with the interval as short as possible or the modulus as…

Number Theory · Mathematics 2022-04-25 Ofir Gorodetsky