🌐EnglishEnglishEspañolFrançaisNederlandsTürkçeРусскийفارسی한국어中文日本語EntityQ1876526· pop 18· linked from 64 articlesessential singularityisolated singularity that is neither removable nor a poleWikidata factsImageEssential singularity.pngSources (3)wikidata.orgdocs.openalex.orgweb.archive.orgvia Wikidata · CC0Available in 18 languagesEspañolFrançais中文日本語РусскийBelarusianCatalanEsperantoHebrewHungarianConnectionspoleEntityInternational Standard Book NumberEntityCategoriesComplex analysis