Brouwer fixed-point theorem

American  

[brou-er fikst-point thee-er-uhm, theer-uhm] / ˈbraʊ ər ˈfɪkstˈpɔɪnt ˌθi ər əm, ˌθɪər əm /

noun

Mathematics.

1. the theorem that for any continuous transformation of a circle into itself, including its boundary, there is at least one point that is mapped to itself.

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Etymology

Origin of Brouwer fixed-point theorem

Named after L. E. J. Brouwer

Example Sentences

Dr. Tanton chose Sperner’s lemma, which is related to the Brouwer fixed-point theorem that both Francis Su and Holly Krieger talked about on their episodes of the podcast.

From Scientific American • Sep. 29, 2018

Dr. Krieger chose the Brouwer fixed-point theorem as her favorite theorem, which means for the first time on the show, we had a theorem repeat!

From Scientific American • Aug. 27, 2018