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We establish a general result on the existence of partially defined semiconjugacies between rational functions acting on the Riemann sphere. The semiconjugacies are defined on the complements to at most one-dimensional sets. They are…

Dynamical Systems · Mathematics 2010-08-30 Vladlen Timorin

The mean flux theorems are proved for solutions of the Helmholtz equation and its modified version. Also, their converses are considered along with some other properties which generalise those that guarantee harmonicity.

Analysis of PDEs · Mathematics 2020-04-08 Nikolay Kuznetsov

We show that a family of meromorphic functions in the unit disk $\dk$ whose spherical derivatives are uniformly bounded away from zero is normal. Furthermore, we show that for each $f$ meromorphic in $\dk$ we have $\inf_{z\in\dk} f^#(z)\le…

Complex Variables · Mathematics 2010-10-25 Jürgen Grahl , Shahar Nevo

We study the conformal type of surfaces spread over the sphere via random quasiconformal maps. Constructing a random Beltrami coefficient on the complex plane, we obtain a locally quasiconformal homeomorphism with prescribed dilatation that…

Complex Variables · Mathematics 2026-03-18 Michael Iofin

In this paper, we extend our earlier result (see [Y-2008]) on the distribution of normalized zero-sets of random entire functions to random entire functions with small random perturbation.

Complex Variables · Mathematics 2009-04-14 Weihong Yao

Let M be a monoidal category endowed with a distinguished class of weak equivalences and with appropriately compatible classifying bundles for monoids and comonoids. We define and study homotopy-invariant notions of normality for maps of…

Algebraic Topology · Mathematics 2012-01-04 Emmanuel D. Farjoun , Kathryn Hess

In this work we study microlocal regularity of hyperfunctions defining in this context a class of generalized FBI transforms first introduced for distributions by Berhanu and Hounie. Using a microlocal decomposition of a hyperfunction and…

Analysis of PDEs · Mathematics 2022-06-22 Gustavo Hoepfner , Luis F. Ragognette

We investigate uniqueness problems for an entire function that shares two small functions of finite order with their difference operators. In particular, we give a generalization of a result in $[2]$.

Complex Variables · Mathematics 2015-05-11 Zinelâabidine Latreuch , Abdallah El Farissi , Benharrat Belaidi

We characterize normal families in the unit ball as those families of analytic functions whose restrictions to each complex line through the origin are normal. We then generalize this result to a characterization of normal functions…

Complex Variables · Mathematics 2026-01-29 Peter V Dovbush , Steven G Krantz

Motivated by Bloch's principle, we prove a value distribution result for meromorphic functions which is related to Hayman's alternative in certain sense.

Complex Variables · Mathematics 2018-02-28 Kuldeep Singh Charak , Anil Singh

We consider the value distribution of logarithms of symmetric power L-functions associated with newforms of even weight and prime power level. In the symmetric square case, under certain plausible analytical conditions, we prove that…

Number Theory · Mathematics 2023-03-21 Philippe Lebacque , Kohji Matsumoto , Masahiro Mine , Yumiko Umegaki

Consider a continuous one parameter family of circles in complex plane that contains two circles lying in the exterior of one another. Under mild assumptions on the family, we prove that if a continuous function on the union of the above…

Complex Variables · Mathematics 2007-05-23 A. Tumanov

Recently, new classes of positive and measurable functions, $\mathcal{M}(\rho)$ and $\mathcal{M}(\pm \infty)$, have been defined in terms of their asymptotic behaviour at infinity, when normalized by a logarithm (Cadena et al., 2015, 2016,…

Classical Analysis and ODEs · Mathematics 2017-06-30 Meitner Cadena , Marie Kratz , Edward Omey

The subject of features normalization plays an important central role in data representation, characterization, visualization, analysis, comparison, classification, and modeling, as it can substantially influence and be influenced by all of…

Machine Learning · Computer Science 2024-09-18 Alexandre Benatti , Luciano da F. Costa

It is known that the $L^{2}$-norms of a harmonic function over spheres satisfies some convexity inequality strongly linked to the Almgren's frequency function. We examine the $L^{2}$-norms of harmonic functions over a wide class of evolving…

Analysis of PDEs · Mathematics 2019-10-25 Stine Marie Berge

We present some results on two meromorphic functions from S to the Riemann sphere sharing a number of values where S is a Riemann surface of one of the following types: compact, compact minus finitely many points, the unit disk, a torus,…

Complex Variables · Mathematics 2016-10-05 Andreas Schweizer

The main aspect of this paper is to introduce a new generalisation of nano open sets namely, nano h-open sets. These newly generalised sets serve as the foundation for the definition of nano h-continuous functions and some results involving…

General Mathematics · Mathematics 2023-06-19 Shallu Sharma , Pooja Saproo , Naresh Digra , Iqbal Kour

In this article, we generalize the notion of orthogonality as a linear combination of norm derivatives in order to give a novel concept that we refer to as $\rho_{\alpha,\beta}$-orthogonality. Also, we discuss some of its geometric…

Functional Analysis · Mathematics 2023-10-12 Kallal Pal , Sumit Chandok

We study the regularity of solutions of functional equations of a generalized mean value type. In this paper we give sufficient conditions for the regularity by using hypoellipticity which is a concept of the theory of partial differential…

funct-an · Mathematics 2016-08-31 A. Tsutsumi , S. Haruki

We show that the family of all holomorphic functions $f$ in a domain $D$ satisfying $$\frac{|f^{(k)}|}{1+|f|}(z)\le C \qquad \mbox{ for all } z\in D$$ (where $k$ is a natural number and $C>0$) is quasi-normal. Furthermore, we give a general…

Complex Variables · Mathematics 2016-09-21 Jürgen Grahl , Tomer Manket , Shahar Nevo