Computational Combinatorics

Month: April, 2015

Happy Birthday, Joan Hutchinson!

Bernard Lidický and I organized an AMS Special Session on Extremal and Structural Graph Theory last weekend. It was a wonderful session, filled with wonderful speakers talking about some amazing mathematics.

Notably missing was Joan Hutchinson, who we invited but she declined because she was celebrating a milestone birthday on Sunday. That’s a very good reason to miss the session, and we missed her greatly. However, we did want to share our well-wishes.

Thanks to all who helped with the session and the making of this video! A few participants were missing at the time of filming, but you can try finding your favorite graph theorists in the (very short) video above.

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Shannon Capacity of Odd Cycles

Breaking news: Mathew and Östergård have improved lower bounds on the Shannon capacity of some odd cycles. These improvements over a very old and difficult problem come via some sophisticated algorithms.
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