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We introduce Nevanlinna classes associated to non radial weights in the unit disc in the complex plane and we get Blaschke type theorems relative to these classes by use of several complex variables methods. This gives alternative proofs…

Complex Variables · Mathematics 2017-07-06 Eric Amar

We provide results of uniqueness for holomorphic functions in the Nevanlinna class bridging those previously obtained by Hayman and Lyubarskii-Seip. Namely, we propose certain classes of hyperbolically separated sequences in the disk, in…

Complex Variables · Mathematics 2007-05-23 Jordi Pau , Pascal J. Thomas

In this paper, we give several characterizations of Herglotz-Nevanlinna functions in terms of a specific type of positive semi-definite functions called Poisson-type functions. This allows us to propose a multidimensional analogue of the…

Complex Variables · Mathematics 2022-01-05 Mitja Nedic

In this paper, we introduce and investigate a novel class of analytic and univalent functions of negative coefficients in the open unit disk. For this function class, we obtain characterization and distortion theorems as well as the radii…

Complex Variables · Mathematics 2017-10-11 P. N. Kamble , M. G. Shrigan , H. M. Srivastava

A Nevanlinna function is a function which is analytic in the open upper half plane and has a non-negative imaginary part there. In this paper we study a fractional linear transformation for a Nevanlinna function $n$ with a suitable…

Functional Analysis · Mathematics 2007-11-28 D. Alpay , A. Dijksma , H. Langer

In this paper we obtain a noncommutative multivariable analogue of the classical Nevanlinna-Pick interpolation problem for analytic functions with positive real parts on the open unit disc. As consequences, we deduce some results concerning…

Functional Analysis · Mathematics 2009-02-04 Gelu Popescu

The purpose of this paper is to characterize the zero sets of holomorphic functions in the Nevanlinna class on a class of convex domains of infinite type in $\mathbb{C}^2$. Moreover, we also obtain $L^p$ estimates, $1 \leq p \leq \infty$,…

Complex Variables · Mathematics 2016-05-24 Tran Vu Khanh , Andrew Raich

This paper studies the determining sets for analytic functions from the symmetrized bidisk into the open unit disk in $\mathbb C$. It relates the idea to the uniqueness of the solutions of a Nevanlinna-Pick interpolation problem. It also…

Complex Variables · Mathematics 2022-08-15 B. Krishna Das , P. Kumar , H. Sau

We propose a definition of sampling set for the Nevanlinna class in the disk, i.e. a subset of the disk such that the analogue of the norm of a function in the Nevanlinna class can be recovered only from its values on the subset. We show it…

Complex Variables · Mathematics 2007-05-23 Xavier Massaneda , Pascal J. Thomas

Using a result of Hayman, we show that the Nevanlinna class of holomorphic functions on the unit disc is not invariant under the action of the Cesaro operator and more generally under the action of Volterra operators on elements g,provided…

Complex Variables · Mathematics 2020-04-07 Apollon G. Paraskevas

We give a short survey on generalizations of Nevanlinna's theorems on zero distribution of bounded holomorphic functions and representation of meromorphic functions in multiply connected domains. It is a part of our report in the conference…

Complex Variables · Mathematics 2011-04-28 Bulat N. Khabibullin

The purpose of this article is threefold. The first is to construct a Nevanlina theory for meromorphic mappings from a polydisc to a compact complex manifold. In particular, we give a simple proof of Lemma on logarithmic derivative for…

Complex Variables · Mathematics 2017-11-13 Do Duc Thai , Vu Duc Viet

This paper establishes a version of Nevanlinna theory based on Askey-Wilson divided difference operator for meromorphic functions of finite logarithmic order in the complex plane $\mathbb{C}$. A second main theorem that we have derived…

Complex Variables · Mathematics 2018-02-06 Yik-Man Chiang , Shaoji Feng

This paper re-develops the Nevanlinna theory for meromorphic functions on $\mathbb C$ in the viewpoint of holomorphic forms. According to our observation, Nevanlinna's functions can be formulated by a holomorphic form. Applying this thought…

Complex Variables · Mathematics 2022-08-31 Xianjing Dong , Shuangshuang Yang

In this paper, we generalize the classical Nevanlinna theory of algebroid functions from $\mathbb C$ to a complete K\"ahler manifold with either non-negative Ricci curvature or non-positive sectional curvature. As its applications, we…

Complex Variables · Mathematics 2025-05-06 Xianjing Dong

We show how eigenvalue estimates for linear operators can be used to obtain new Blaschke type bounds on zeros of holomorphic functions on the unit disk.

Complex Variables · Mathematics 2014-02-26 Marcel Hansmann , Guy Katriel

This survey shows how, for the Nevanlinna class N of the unit disc, one can define and often characterize the analogues of well-known objects and properties related to the algebra of bounded analytic functions $ H^\infty$: interpolating…

Complex Variables · Mathematics 2019-11-07 Xavier Massaneda , Pascal J. Thomas

New classes of generalized Nevanlinna functions, which under multiplication with an arbitrary fixed symmetric rational function remain generalized Nevanlinna functions, are introduced. Characterizations for these classes of functions are…

Functional Analysis · Mathematics 2013-12-30 S. Hassi , H. L. Wietsma

We establish the existence of Nevanlinna domains with large boundaries. In particular, these domains can have boundaries of positive planar measure. The sets of accessible points can be of any Hausdorff dimension between $1$ and $2$. As a…

Complex Variables · Mathematics 2018-08-23 Yurii Belov , Alexander Borichev , Konstantin Fedorovskiy

We generalize two integral representation formulae of Nevanlinna to functions of several variables. We show that for a large class of analytic functions that have non-negative imaginary part on the upper polyhalfplane there are…

Complex Variables · Mathematics 2012-06-26 Jim Agler , R. Tully-Doyle , N. J. Young
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