Annular Khovanov-Lee theory of braid closures and braided surfaces

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• Eli Grigsby (Boston College)
• Thursday 19 January 2017, 14:30-15:30
• Seminar Room 1, Newton Institute.

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HTLW01 - Winter school workshop

By endowing the annular Khovanov-Lee complex with the structure of a bifiltered complex, we define a family of annular Rasmussen invariants that gives information both about the positivity of braids viewed as mapping classes and the complexity of braided surfaces bounded by their closures (j. work with T. Licata and S. Wehrli).

This talk is part of the Isaac Newton Institute Seminar Series series.

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