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Ortrud Oellermann, 2017/04/21

Seminar series | : | Combinatorics |

Presenter | : | Ortrud Oellermann |

Department | : | Mathematics |

Institution | : | University of Manitoba |

Date | : | Friday, April 21st, 2017 |

Time | : | : |

Location | : | 111 Armes |

**Ortrud Oellermann, 2017/04/21**

The study of the mean subtree order of a given tree was initiated in a 1983 paper of Jamison. While the structure of trees of a given order with minimum mean subtree order have been characterized, the problem of describing trees of a given order with maximum mean subtree order is still largely open. This talk begins with an overview of known results followed by recent results on trees of maximum subtree order within certain classes of trees. (New results are joint work with Lucas Mol.)

See the abstractSubmit a seminar (authentication required).

Thursday, August 3rd, 2017 at 14:15, TBA

**Qing-Wen Wang**

TBA

(Seminar series : Colloquium)

Thursday, August 3rd, 2017 at 15:30, 418 Machray Hall

**Jose Aguayo **

Representation Theorems for Operators on Free Banach Spaces of Countable Type

(Seminar series : Colloquium)

Friday, September 1st, 2017 at 15:30, 418 Machray Hall

**Gerard Freixas I Montplet**

TBA

(Seminar series : Colloquium)