Results 1 to 10 of about 5,956,521 (263)

Nevanlinna Theory of the Wilson Divided-difference Operator [PDF]

open access: bronze, 2017
Sitting at the top level of the Askey-scheme, Wilson polynomials are regarded as the most general hypergeometric orthogonal polynomials. Instead of a differential equation, they satisfy a second order Sturm-Liouville type difference equation in terms of ...
Cheng, Kam Hang, Chiang, Yik-Man
core   +4 more sources

Nevanlinna Theory for Jackson Difference Operators and Entire Solutions of q-Difference Equations [PDF]

open access: greenAnalysis Mathematica, 2021
This paper has two purposes. One is to establish a version of Nevanlinna theory based on the historic so-called Jackson difference operator Dqf(z)=f(qz)−f(z)qz−z\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts}
Tingbin Cao, H. X. Dai, Jing Wang
openalex   +3 more sources

Greatest common divisors of analytic functions and Nevanlinna theory on algebraic tori [PDF]

open access: hybridJournal für die Reine und Angewandte Mathematik, 2019
We study upper bounds for the counting function of common zeros of two meromorphic functions in various contexts. The proofs and results are inspired by recent work involving greatest common divisors in Diophantine approximation, to which we introduce ...
Aaron Levin, Julie Tzu‐Yueh Wang
openalex   +2 more sources

Ax–Schanuel type theorems on functional transcendence via Nevanlinna theory [PDF]

open access: greenMathematische Zeitschrift, 2021
In this paper, we apply Nevanlinna theory to prove two Ax–Schanuel type theorems for functional transcendence when the original exponential map is replaced by other meromorphic functions. We give examples to show that these results are optimal.
Jiaxing Huang, Tuen Wai Ng
semanticscholar   +3 more sources

Nevanlinna theory for the difference operator [PDF]

open access: green, 2005
Certain estimates involving the derivative $f\mapsto f'$ of a meromorphic function play key roles in the construction and applications of classical Nevanlinna theory.
Halburd, R. G., Korhonen, R. J.
core   +9 more sources

Nevanlinna analytic continuation for Migdal–Eliashberg theory [PDF]

open access: yesComputational Materials Today
In this work, we present a method to reconstruct real-frequency properties from analytically continued causal Green’s functions within the framework of Migdal–Eliashberg (ME) theory for superconductivity.
D.M. Khodachenko   +4 more
doaj   +2 more sources

New results on the existences of solutions of the Dirichlet problem with respect to the Schrödinger-prey operator and their applications [PDF]

open access: yesJournal of Inequalities and Applications, 2017
In this paper, by using the Beurling-Nevanlinna type inequality we obtain new results on the existence of solutions of the Dirichlet problem with respect to the Schrödinger-prey operator.
Xu Chen, Lei Zhang
doaj   +2 more sources

Studies of Differences from the point of view of Nevanlinna Theory [PDF]

open access: bronzeTransactions of the American Mathematical Society, 2020
This paper consists of three parts. First, we give so far the best condition under which the shift invariance of the counting function, and of the characteristic of a subharmonic function, holds. Second, a difference analogue of logarithmic derivative of
Jianhua Zheng, Risto Korhonen
openalex   +3 more sources

Difference Nevanlinna theories with vanishing and infinite periods [PDF]

open access: bronze, 2017
By extending the idea of a difference operator with a fixed step to varying-steps difference operators, we have established a difference Nevanlinna theory for meromorphic functions with the steps tending to zero (vanishing period) and a difference ...
Chiang, Yik-Man, Luo, Xudan
core   +3 more sources

Nevanlinna theory of the Askey-Wilson divided difference operator [PDF]

open access: yes, 2018
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 $\mathbb{C}$.
Chiang, Yik-Man, Feng, Shaoji
core   +3 more sources

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