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We consider spaces for which there is a notion of harmonicity for complex valued functions defined on them. For instance, this is the case of Riemannian manifolds on one hand, and (metric) graphs on the other hand. We observe that it is…

Metric Geometry · Mathematics 2016-08-16 Sylvain Barré , Abdelghani Zeghib

We investigate variants of a Three Circles type Theorem in the context of \mathcal{Q}-valued functions. We prove some convexity inequalities related to the L^{2} growth function in the \mathcal{Q}-valued settings. Optimality of these…

Analysis of PDEs · Mathematics 2022-10-27 Immanuel Ben Porat

We study harmonic maps from a 3-manifold with boundary to $\mathbb{S}^1$ and prove a special case of dihedral rigidity of three dimensional cubes whose dihedral angles are $\pi / 2$. Furthermore we give some applications to mapping torus…

Differential Geometry · Mathematics 2021-06-08 Xiaoxiang Chai , Inkang Kim

We recall the definition of quasinearly subharmonic functions, point out that this function class includes, among others, subharmonic functions, quasisubharmonic functions, nearly subharmonic functions and essentially almost subharmonic…

Classical Analysis and ODEs · Mathematics 2016-08-04 O. Dovgoshey , J. Riihentaus

In this paper, we study stability for harmonic foliations on locally conformal K\"ahler manifolds with complex leaves. We also discuss instability for harmonic foliations on compact submanifolds immersed in Euclidean spaces and compact…

Differential Geometry · Mathematics 2007-05-23 K. Ichikawa , T. Noda

We consider a class $\THO$ of typically real harmonic functions on the unit disk that contains the class of normalized analytic and typically real functions. We also obtain some partial results about the region of univalence for this class.

Complex Variables · Mathematics 2009-03-10 Michael Dorff , Maria Nowak , Wojciech Szapiel

We derive monotone properties of positive harmonic functions on three dimensional manifolds with nonnegative scalar curvature, with an asymptotically flat end. Rigidity characterization of spatial Schwarzschild manifolds with two ends is…

Differential Geometry · Mathematics 2025-12-22 Pengzi Miao

We present the classification of positive harmonic functions on the Heisenberg group in the case of the southwest measure.

Group Theory · Mathematics 2019-12-16 Yves Benoist

We present structures comprised of identical convex polyhedra which are interlocked geometrically. These sets cannot be disassembled by removing individual polyhedra by translations and/or rotations. The shapes that permit interlocking…

Metric Geometry · Mathematics 2017-12-05 A. J. Kanel-Belov , A. V. Dyskin , Y. Estrin , E. Pasternak , I. A. Ivanov-Pogodaev

Experimental results on hadronic structures are discussed in view of our physics understanding. Achievements and challenges are noted.

High Energy Physics - Experiment · Physics 2007-05-23 Martin Erdmann

This paper aims to show that there exists a triangulation of the Heisenberg group $\mathbb{H}^n$ into singular simplexes with regularity properties on both the low-dimensional and high-dimensional layers. For low dimensions, we request our…

Metric Geometry · Mathematics 2023-05-15 Giovanni Canarecci

We describe recent nonlinear analytic approximation tools in the classical setting of Hardy spaces in the upper half plane and show how to transfer them to the higher dimensional real setting of harmonic functions in upper half spaces. It…

Classical Analysis and ODEs · Mathematics 2022-10-06 Ronald R. Coifman , Jacques Peyrière , Guido Weiss

A superdiagonal composition is one in which the $i$-th part or summand is of size greater than or equal to $i$. In this paper, we study the number of palindromic superdiagonal compositions and colored superdiagonal compositions. In…

Combinatorics · Mathematics 2021-01-20 Jazmín Mantilla , Wilson Olaya-León , José L. Ramírez

This article is concerned with the stability of triharmonic maps and in particular triharmonic hypersurfaces. After deriving a number of general statements on the stability of triharmonic maps we focus on the stability of triharmonic…

Differential Geometry · Mathematics 2025-04-30 Volker Branding

In trigonometric series terms all polyharmonic functions inside the unit disk are described. For such functions it is proved the existence of their boundary values on the unit circle in the space of hyperfunctions. The necessary and…

Functional Analysis · Mathematics 2007-05-23 M. L. Gorbachuk , S. M. Torba

A monotonicity property of Harnack inequality is proved for positive invariant harmonic functions in the unit ball.

Classical Analysis and ODEs · Mathematics 2007-05-23 Yifei Pan , Mei Wang

First, we give the definition for quasi-nearly subharmonic functions, now for general, not necessarily nonnegative functions, unlike previously. We point out that our function class incudes, among others, quasisubharmonic functions, nearly…

Analysis of PDEs · Mathematics 2008-10-08 Juhani Riihentaus

In this short note we recall the definition of intrinsically harmonic forms, some known results and some open problems.

Differential Geometry · Mathematics 2025-06-23 Gianluca Bande

In recent works, arbitrary structural sets in the non-commutative Clifford analysis context have been used to introduce non-trivial generalizations of harmonic Clifford algebra valued functions in $\mathbb{R}^m$. Being defined as the…

Analysis of PDEs · Mathematics 2022-02-18 Daniel Alfonso Santiesteban , Yudier Peña Pérez , Ricardo Abreu Blaya

In this paper, we are concerned with the bicomplex analog of the well-known result asserting that real-valued harmonic functions, on simply connected domains, are the real parts of holomorphic functions. We show that this assertion, word…

Complex Variables · Mathematics 2022-03-15 Aiad El Gourari , Allal Ghanmi , Ilham Rouchdi