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Questions
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Who thought that the Alexander polynomial was the only knot invariant of its kind?

jun 30 11 at 2:35 unknown (google) 5,540●6●29

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Can we categorify the equation (1 - t)(1 + t + t^2 + …) = 1?

feb 18 11 at 7:10 Gil Kalai 10.7k●6●80●144

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Does some version of U_q(gl(1|1)) have a basis like Lusztig’s basis for \dot{U(sl_2)}?

jan 8 11 at 12:22 MathOverflow♦ 1●2●3

 
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Is a positive link the closure of a positive braid?

oct 15 10 at 5:17 Agol 23.9k●1●33●84

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Matrices into path algebras

jul 7 10 at 1:57 Jose Brox 975●1●12●22

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Does the super Temperley-Lieb algebra have a Z-form?

mar 28 10 at 18:34 Ben Webster♦ 20.7k●1●44●114

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Do Jones-Wenzl idempotents lift to anything interesting in the Hecke algebra?

mar 28 10 at 7:07 Bruce Westbury 6,645●2●10●25

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Is Murasugi’s conjecture still open?

nov 24 09 at 7:54 Daniel Moskovich 11.1k●1●36●105