411 REFERENCE · Wiktionary
Hopfian
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
From en Hopf ian.
Adjective
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en math Relating to, or introduced by, Heinz Hopf (1894–1971), German mathematician.
Derived terms
en cohopfian Hopfian group Hopfian object hopfion
en eponyms