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Tag Archives: entropy
Entropy and groups
Yesterday I gave a talk on a theorem of Terence Chan, which he spoke about at a network coding meeting at Queen Mary in late 2012. He sketched a proof on the common room table after the talk, and I … Continue reading
Posted in exposition
Tagged entropy, groups, information, random variables, Shannon, subgroups, Terence Chan
1 Comment
Monkeys and typewriters
(Picture by New York Zoological Society, from Wikimedia Commons) Ford was wildly excited. “Arthur!” he said, “this is fantastic! We’ve been picked up by a ship powered by the Infinite Improbability Drive! This is incredible! I heard rumours about it … Continue reading
Size
Last week we had a fascinating seminar by Tom Leinster, from Glasgow, with the title “Entropy, diversity and magnitude”. The abstract is here, and certainly suggested something interesting in prospect. I’ll introduce the topic with a modification of one of … Continue reading
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