Contact Info
Combinatorics & Optimization
University of Waterloo
Waterloo, Ontario
Canada N2L 3G1
Phone: 519-888-4567, ext 33038
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Thursday, October 10, 2019 1:00 PM EDT
Title: Quantum Colouring and Derangements
Speaker: Chris Godsil Affiliation: University of Waterloo Room: MC 5479Abstract:
Work in quantum information has lead to the introduction of quantum colourings.
Thursday, October 10, 2019 3:00 PM EDT
Title: Scattering amplitudes and associahedra
Speaker: Hugh Thomas Affiliation: UQAM Room: MC 5417Abstract:
The classic approach to scattering amplitudes sums a contribution from a (potentially very large) number of Feynman diagrams.
Thursday, October 10, 2019 4:00 PM EDT
Title: A Pseudoforest Analogue of the Strong Nine Dragon Tree Conjecture
Speaker: Logan Grout Affiliation: University of Waterloo Room: MC 5501Abstract:
In 2016, Jiang and Yang proved the Nine Dragon Tree Conjecture, a strengthening of the classical arboricity result of Nash-Williams (1964). On the way to developing this proof, Fan, Lim Song, and Yang proved an analogous result for decomposing graphs into pseudoforests, which is a strengthening of Hakimi’s Theorem.