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dc.contributor.authorBrevig, Ole Fredrik
dc.contributor.authorOrtega-Cerdà, Joaquim
dc.contributor.authorSeip, Kristian
dc.date.accessioned2021-01-12T09:37:02Z
dc.date.available2021-01-12T09:37:02Z
dc.date.created2021-01-11T17:56:28Z
dc.date.issued2021
dc.identifier.issn0022-247X
dc.identifier.urihttps://hdl.handle.net/11250/2722488
dc.description.abstractA 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.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleA converse to the Schwarz lemma for planar harmonic mapsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.volume497en_US
dc.source.journalJournal of Mathematical Analysis and Applicationsen_US
dc.source.issue2en_US
dc.identifier.doi10.1016/j.jmaa.2020.124908
dc.identifier.cristin1869337
dc.relation.projectNorges forskningsråd: 275113en_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.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal