On a problem of Hinkkanen about Hadamard products
type: Item
instance of: scholarly article
title: On a problem of Hinkkanen about Hadamard products
zbMATH Open document ID: 0707.30023
author: Kazuya Tohge
published in: Kodai Mathematical Journal
publication date: 1990-01-01T00:00:00Z
review text: The author in response to a conjecture by A. Hinkkanen proves that if two meromorphic functions f and g of hyper-order less than 2 satisfy the condition that \(f^{(n)}/g^{(n)}\) is entire and non-vanishing for \(0\leq n\leq 2\), then f/g reduces to a constant except for a few cases. These cases are characterized and f and g are explicitely given.
reviewed by: Fred Gross
Mathematics Subject Classification ID: 30D30
Mathematics Subject Classification ID: 30D20
zbMATH DE Number: 4161066
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.2996/kmj/1138039164
OpenAlex ID: W2047979061
cites work: Research Problems in Complex Analysis
cites work: Q5683031
cites work: Q3868039
cites work: Q5723337
cites work: Q4112233
cites work: On the existence of analytic mappings between two ultrahyperelliptic surfaces
cites work: On the quotient of two integral functions
DOI: 10.2996/KMJ/1138039164
description: scientific article; zbMATH DE number 4161066