Dear colleagues,
We are pleased to announce a special edition of "Graph
Theory in Paris" event to be held on zoom:
Speaker: Claude Tardif, from RMC.
Title of the talk: New counterexamples to Hedetniemi's
conjecture
Time: Friday 02 December 2022, 15:00 Paris time (9:00
Toronto time)
More details, including the zoom link, at:
Note 1: Claude will take questions and, therefore, no
time limit will be posed on the talk. Moreover, we may have
discussions after the talk.
Note 2: Feel free to forward this invitation to any
person or group that might be interested.
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GTP is a young series, aiming to gather together graph
theorists in Paris once or twice a year. Activities were
naturally on pause. However, given the high interest of the
subject for this session, which goes far beyond Parisian graph
theorists, we decided to have this session on zoom.
Claude will present a full resolution of Hedetniemi's
conjecture in this talk. This is an old conjecture on the
chromatic number of the categorical product of two graphs.
We hope to resume our activities in 2023. For suggestions
of speakers, or to help us organize next events do not hesitate
to write to us.
Looking forward to seeing many of you on Dec 02,
Organizers: Reza, Valia, Zhouningxin