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High School Mathematics Contest

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2012 Contest Logo

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We owe the T-shirt design and our 2012 contest logo to Prof. Daniel Cohen of LSU Math Department.




These are examples of Brunnian braids. If one strand is deleted, the resulting braid on the remaining strands can be "unbraided." The "closure" of the first of these braids (obtained by tying the strands labeled 1 together and so on) is a famous link known as the Borromean rings. The last of these braids recently played a role in proving that the pure braid group does not have a property known as residual freeness.


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Mark Davidson, phone: (225) 578-1581