<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-13T01:26:12Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:2117/101047" metadataPrefix="qdc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:2117/101047</identifier><datestamp>2026-02-04T06:49:44Z</datestamp><setSpec>com_2072_1033</setSpec><setSpec>col_2072_452950</setSpec></header><metadata><qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
   <dc:title>Determining plane curve singularities from its polars</dc:title>
   <dc:creator>González Alonso, Víctor</dc:creator>
   <dc:creator>Alberich Carramiñana, Maria</dc:creator>
   <dc:subject>Àrees temàtiques de la UPC::Matemàtiques i estadística</dc:subject>
   <dc:subject>Curves, Plane</dc:subject>
   <dc:subject>Geometry, Algebraic</dc:subject>
   <dc:subject>Enriques diagram</dc:subject>
   <dc:subject>Equisingularity</dc:subject>
   <dc:subject>Germ of plane curve</dc:subject>
   <dc:subject>Polar</dc:subject>
   <dc:subject>Topological equivalence</dc:subject>
   <dc:subject>Corbes planes</dc:subject>
   <dc:subject>Geometria algebraica</dc:subject>
   <dcterms:abstract>This paper addresses a very classical topic that goes back at least to Plücker: how to understand a plane curve singularity using its polar curves. Here, we explicitly construct the singular points of a plane curve singularity directly from the weighted cluster of base points of its polars. In particular, we determine the equisingularity class (or topological equivalence class) of a germ of plane curve from the equisingularity class of generic polars and combinatorial data about the non-singular points shared by them.</dcterms:abstract>
   <dcterms:abstract>Peer Reviewed</dcterms:abstract>
   <dcterms:abstract>Postprint (author's final draft)</dcterms:abstract>
   <dcterms:issued>2016-01-10</dcterms:issued>
   <dc:type>Article</dc:type>
   <dc:relation>http://www.sciencedirect.com/science/article/pii/S0001870815004302</dc:relation>
   <dc:rights>http://creativecommons.org/licenses/by-nc-nd/3.0/es/</dc:rights>
   <dc:rights>Open Access</dc:rights>
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