Knot at Lunch on November 28 2007

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Dear Knot at Lunch People,

We will have our next fall lunch on Wednesday November 28, at the usual place, Bahen 6180, at 12 noon.

As always, please bring brown-bag lunch and fresh ideas. The agenda: we may talk a bit about quantum groups, or we may talk about something else.

Further information about this meeting will/may appear at

As always, if you know anyone I should add to this mailing list or if you wish to be removed from this mailing list please let me know. To prevent junk accumulation in mailboxes, I will actively remove inactive people unless they request otherwise.



Some Content

We may look at a part of page 817 of Drinfel'd's famed IMU "Quantum Groups" paper and at a part of page 208 of the Chari-Pressley book on "Quantum Groups". These excerpts are not reproduced here so as to be a good citizen and respect copyright laws, though I wish it was the norm in math (and in life in general) to have copyright/left policies such as my own.

Following that we may discuss

A Quantum Group is the thing whose representations form a "(strict) rigid braided monoidal category".

See what Wikipedia has to say: Quantum group, Monoidal category, Braided monoidal category.