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Dror Bar-Natan
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Academic Pensieve
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Blackboard Shots
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Random
Blackboard Shots with Prefix "Kuperberg"
130330-134944
: What's a channel?
130330-134345
: Pure states in a combined system.
130330-133239
: Hidden measurements.
130330-132518
: Qudits.
130330-131951
: The state space for $M_2$.
130330-131024
: The definitions of a state.
130330-130340
: Von-Neumann's theorem.
130329-140254
: Meta-monoids.
130329-112903
: Homotopy classes of combings.
130329-111227
: Known equalities.
130329-110445
: Links in manifolds (4).
130329-105143
: Links in manifolds (3).
130329-104103
: Links in manifolds (2).
130329-103507
: Links in manifolds.
130329-102604
: The origin of $\sigma$.
130329-101648
: L vs. R.
130328-120638
: Special scalars.
130328-115333
: The appearance of framings.
130328-114702
: The $+2$ singularity and asymptotic flatness.
130328-113938
: Rotation numbers for intersections in the plane (2).
130328-112731
: Rotation numbers for intersections in the plane.
130328-112129
: The $u_q({\mathfrak g}^+)$ example (2).
130328-111301
: The $u_q({\mathfrak g}^+)$ example.
130328-105822
: The $H^1(S^1)$ example.
130328-103826
: Non-involutory - the 3 difficulties.
130328-102931
: Plans for Thursday.
130327-165243
: Status of word canonical model results.
130327-164515
: Acyclic words.
130327-163352
: The main simplification move.
130327-162904
: The Diamond Lemma.
130327-154127
: Converse direction (2).
130327-153101
: Converse direction.
130327-151841
: Why 3D?
130327-151449
: Proof of the slide move.
130327-145447
: Moves on Heegaard diagrams.
130327-142828
: Heegaard surfaces and boundaries.
130327-115609
: The group-algebra case.
130327-114303
: The KEY picture.
130327-113412
: Wheels in the involutory case.
130327-112237
: Integrals in the involutory case.
130327-111313
: R-matrix words and canonical models for virtual links.
130327-110443
: Theorem about Hopf diagrams and 3-manifolds.
130327-105408
: Integrals.
130327-103924
: Radford's example.
130327-103332
: Three questions about this duality.
130327-102330
: Diagrams for Hopf algebras.
130327-101448
: Diagrams for tensor contractions.
130327-093024
: Jacobi diagrams and hair.