A simple proof of the mountain circle theorem
type: Item
instance of: scholarly article
title: A simple proof of the mountain circle theorem
zbMATH Open document ID: 1045.58007
DOI: 10.4171/ZAA/1184
author: S. Comparato
published in: Zeitschrift für Analysis und ihre Anwendungen
publication date: 2004-06-15T00:00:00Z
review text: The author proposes a simple proof of the Fournier-Willem mountain circle theorem. She still uses the Ljusternik-Schnirelman-type theory introduced by Fournier and Willem but, instead of cohomology, she uses Brouwer degree theory.
reviewed by: Youssef Jabri
Mathematics Subject Classification ID: 58E05
zbMATH DE Number: 2075241
zbMATH Keywords: Ljusternik-Schnirelman category
zbMATH Keywords: Fournier-Willem relative category
zbMATH Keywords: Brouwer degree
MaRDI profile type: Publication
cites work: Dual variational methods in critical point theory and applications
full work available at URL: https://doi.org/10.4171/zaa/1184
OpenAlex ID: W2006556450
description: scientific article; zbMATH DE number 2075241