# Bronisław Knaster

Appearance

Bronisław Knaster | |
---|---|

Born | |

Died | 3 November 1980 | (aged 87)

Nationality | Polish |

Alma mater | University of Wrocław |

Known for | KKM lemma |

Scientific career | |

Fields | Mathematics |

Institutions | University of Wrocław |

Doctoral advisor | Stefan Mazurkiewicz |

**Bronisław Knaster** (22 May 1893 – 3 November 1980) was a Polish mathematician; from 1939 a university professor in Lwów and from 1945 in Wrocław.^{[1]}

He is known for his work in point-set topology and in particular for his discoveries in 1922 of the hereditarily indecomposable continuum or pseudo-arc and of the Knaster continuum, or buckethandle continuum.^{[2]} Together with his teacher Hugo Steinhaus and his colleague Stefan Banach, he also developed the last diminisher procedure for fair cake cutting.^{[3]}^{: 2 }

Knaster received his Ph.D. degree from University of Warsaw in 1922. under the supervision
of Stefan Mazurkiewicz.^{[4]}

## See also

[edit]## References

[edit]**^**Duda, Roman (1987), "Life and work of Bronisław Knaster (1893–1980)" (PDF),*Colloquium Mathematicum*,**51**: 85–102, doi:10.4064/cm-51-1-85-102, MR 0891276.**^**Charatonik, Janusz J. (1997), "The works of Bronisław Knaster (1893–1980) in continuum theory",*Handbook of the history of general topology, Vol. 1*, History of Topology, vol. 1, Kluwer Acad. Publ., Dordrecht, pp. 63–78, doi:10.1007/978-94-017-0468-7_5, ISBN 978-90-481-4820-2, MR 1617581.**^**Barbanel, Julius B. (2005).*The geometry of efficient fair division*. Introduction by Alan D. Taylor. Cambridge: Cambridge University Press. doi:10.1017/CBO9780511546679. ISBN 0-521-84248-4. MR 2132232. Short summary is available at: Barbanel, J. (2010). "A Geometric Approach to Fair Division".*The College Mathematics Journal*.**41**(4): 268. doi:10.4169/074683410x510263.**^**Bronisław Knaster at the Mathematics Genealogy Project