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In this article, we present univalence criteria for polyharmonic and polyanalytic functions. Our approach yields new a criterion for a polyharmonic functions to be fully $\alpha$--accessible. Several examples are presented to illustrate the…

Complex Variables · Mathematics 2016-12-08 K. F. Amozova , E. G. Ganenkova , S. Ponnusamy

We present a new, short and independent proof of the Liouville-type theorem for entire and subharmonic functions of finite order bounded outside some set of zero planar density.

Complex Variables · Mathematics 2020-09-03 Bulat N. Khabibullin

This article presents in a self-contained way A. Uhlmann's celebrated Theorem of monotonicity of the relative entropy under completely positive and trace preserving maps. The Theorem is presented in its more general form and meaningful…

Mathematical Physics · Physics 2024-01-04 Juan Manuel Pérez-Pardo

We analyse some peculiar properties of the function of the Mittag-Leffler (M-L) type, $e_\alpha(t):= E_\alpha(-t^\alpha)$ for $0 <\alpha < 1$ and $t > 0$, which is known to be completely monotone (CM) with a non negative spectrum of…

Mathematical Physics · Physics 2020-06-15 Francesco Mainardi

In this paper, by investigating the monotonicity of a function composed of $% \left( \sinh x\right) /x$ and $\cosh x$ with two parameters in $x$ on $% \left( 0,\infty \right) $, we prove serval theorems related to inequalities for…

Classical Analysis and ODEs · Mathematics 2014-08-12 Zhen-Hang Yang

The completeness of the system of eigenfunctions of the complex Schr\"odinger operator $\mathscr{L}_c=-d^2/dx^2+cx^\alpha$ on the semi-axis with Dirichlet boundary conditions is proved for $\alpha\in(0,2)$ and $|\arg…

Spectral Theory · Mathematics 2021-02-25 Sergey Tumanov

In this paper, the authors establish some inequalities involving the Psi and $k$-Gamma functions. The procedure utilizes some monotonicity properties of some functions associated with the Psi and $k$-Gamma functions.

Classical Analysis and ODEs · Mathematics 2016-02-17 Kwara Nantomah

We prove that there exists an entire function for which every complex number is an asymptotic value and whose growth is arbitrarily slow subject only to the necessary condition that the function is of infinite order.

Complex Variables · Mathematics 2022-01-17 Aimo Hinkkanen , Joseph Miles

In this paper, we prove even symmetry and monotonicity of certain solutions of Allen-Cahn equation in a half plane. We also show that entire solutions with {\it finite Morse index} and {\it four ends} must be evenly symmetric with respect…

Analysis of PDEs · Mathematics 2011-02-22 Changfeng Gui

In this paper, we consider weighted Bergman spaces $\mathcal{B}_{\alpha,p}$ of log-subharmonic functions on the unit sphere. Using the isoperimetric inequality for the spherical metric we prove certain monotonicity property for super-level…

Complex Variables · Mathematics 2025-12-18 Vladan Jaguzović , Petar Melentijević

We generalize to the ${\rm RCD}(0,N)$ setting a family of monotonicity formulas by Colding and Minicozzi for positive harmonic functions in Riemannian manifolds with non-negative Ricci curvature. Rigidity and almost rigidity statements are…

Differential Geometry · Mathematics 2022-01-03 Nicola Gigli , Ivan Yuri Violo

We analyse the relationship between the full additivity of the entanglement cost and its full monotonicity under local operations and classical communication. We show that the two properties are equivalent for the entanglement cost. The…

Quantum Physics · Physics 2013-08-28 Fernando G. S. L. Brandao , Michal Horodecki , Martin B. Plenio , Shashank Virmani

In this paper, we obtain some new inequalities for ({\alpha},m)-convex functions. The analysis used in the proofs is fairly elementary and based on the use of Power-mean inequality.

Functional Analysis · Mathematics 2012-09-25 M. Emin Ozdemir , Merve Avci Ardic

We prove the the multipole Lempert function is monotone under inclusion of pole sets.

Complex Variables · Mathematics 2007-05-23 Nikolai Nikolov , Peter Pflug

Associativity of a two-place function $T: [0,1]^2\rightarrow [0,1]$ defined by $T(x,y)=f^{(-1)}(T^*(f(x),f(y)))$ where $T^*:[0,1]^2\rightarrow[0,1]$ is an associative function with neutral element in $[0,1]$, $f: [0,1]\rightarrow [0,1]$ is…

Functional Analysis · Mathematics 2025-11-04 Yun-Mao Zhang , Xue-ping Wang

Let $A\subset [1,x]$ be a non-empty set of primes with $|A|= \alpha x(\log x)^{-1}$. We prove that there exist absolute constants $c_1,c_2>0$ such that, as $x$ gets sufficiently large, we have $|A+A|\geq c_1(\log x)(\log \log…

Number Theory · Mathematics 2025-04-16 Genheng Zhao

We establish local $C^{1,\alpha}$-regularity for some $\alpha\in(0,1)$ and $C^{\alpha}$-regularity for any $\alpha\in(0,1)$ of local minimizers of the functional \[ v\ \mapsto\ \int_\Omega \phi(x,|Dv|)\,dx, \] where $\phi$ satisfies a…

Analysis of PDEs · Mathematics 2022-02-18 Peter Hästö , Jihoon Ok

For $m,n\in \mathbb{N}$, let $0 < \alpha_i,\beta_j,\lambda_{ij} \leq 1$ be such that $\sum_{j=1}^n \lambda_{ij} = \alpha_i$, $\sum_{i=1}^m \lambda_{ij} = \beta_j$, and $\sum_{i=1}^m \alpha_i = \sum_{j=1}^n \beta_j \leq 1$. We prove that the…

Classical Analysis and ODEs · Mathematics 2019-11-07 Frédéric Ouimet

In this paper we introduce the log entropy functional and establish its monotonicity along the Ricci flow. One consequence of it is the monotonicity of the logarithmic Sobolev constant along the Ricci flow.

Differential Geometry · Mathematics 2011-11-10 Rugang Ye

We give necessary and sufficient conditions for the P\'olya--Szeg\"o type inequality with variable exponent of summability.

Optimization and Control · Mathematics 2017-11-17 S. Bankevich , A. I. Nazarov