dc.contributor.author | Brevig, Ole Fredrik | |
dc.contributor.author | Ortega-Cerdà, Joaquim | |
dc.contributor.author | Seip, Kristian | |
dc.date.accessioned | 2021-01-12T09:37:02Z | |
dc.date.available | 2021-01-12T09:37:02Z | |
dc.date.created | 2021-01-11T17:56:28Z | |
dc.date.issued | 2021 | |
dc.identifier.issn | 0022-247X | |
dc.identifier.uri | https://hdl.handle.net/11250/2722488 | |
dc.description.abstract | A sharp version of a recent inequality of Kovalev and Yang on the ratio of the (H1)∗ and H4 norms for certain polynomials is obtained. The inequality is applied to establish a sharp and tractable sufficient condition for the Wirtinger derivatives at the origin for harmonic self-maps of the unit disc which fix the origin. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | A converse to the Schwarz lemma for planar harmonic maps | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.volume | 497 | en_US |
dc.source.journal | Journal of Mathematical Analysis and Applications | en_US |
dc.source.issue | 2 | en_US |
dc.identifier.doi | 10.1016/j.jmaa.2020.124908 | |
dc.identifier.cristin | 1869337 | |
dc.relation.project | Norges forskningsråd: 275113 | en_US |
dc.description.localcode | © 2020 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |