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Dror Bar-Natan:
Academic Pensieve:
Blackboard Shots:
Caen:

**120608-162419: The meta-group of chord diagrams.**

Caen-{ | hide text |

120614-111118: | The Infinitesimal Alexander Module. |

120614-111111: | $\tilde{E}Z^w$. |

120614-103607: | The differential of the exponential function and BCH. |

120614-103601: | The Euler trick. |

120614-100409: | The topological beta calculus. |

120614-100401: | Separating the body from the soul. |

120613-174037: | The origin of the terms in the swap formula. |

120613-172556: | Example: Computing the virtual trefoil. |

120613-165622: | The four commutative diagrams for $\beta$-calculus. |

120613-162516: | The Yang-Baxter elements. |

120613-160322: | $\chi$ and $\chi^{ss}$. |

120613-155749: | $J$, $K$, wheeling and dewheeling. |

120613-152422: | The $\beta$ relation and other internal quotients. |

120613-150401: | The three forms of the u->w map. |

120613-145720: | More conventions talk. |

120613-144729: | Options for June 13. |

120612-165502: | Proving the equivalence with Alekseev-Torossian. |

120612-163400: | The three w-equations. |

120612-153905: | What's in u, what's in w, and what's in between. |

120612-152046: | High quality associators. |

120612-151544: | The twist relation. |

120612-150450: | Some topology of 2D in 4D (2). |

120612-143455: | Some topology of 2D in 4D. |

120612-141949: | Possible further topics. |

120611-182059: | The double tree construction. |

120611-180051: | Adding the 1D red lines. |

120611-174303: | The almost-complete u-w algebraic structure. |

120611-172128: | Generators and relations for KTG. |

120611-171002: | Algebraic Knot Theory. |

120611-163646: | Knotted trivalent graphs are merely tangles. |

120611-161523: | The identification of div. |

120611-154658: | ${\mathcal A}^w$ between AT and KV (2). |

120611-154104: | ${\mathcal A}^w$ between AT and KV. |

120611-152755: | div, u, and l. |

120611-151200: | Differetial operators and the adjoint. |

120611-145630: | A short exact sequence for tder. |

120611-143615: | The commutator of trees in ${\mathcal A}^w$ (2). |

120611-142304: | Trees and wheels in ${\mathcal A}^w$. |

120608-175816: | Proof of the algebraic definition of ribbon knots. |

120608-174230: | The reality condition. |

120608-173746: | Algebraic knot theory. |

120608-172459: | Polynomiality, links. |

120608-170904: | The simplest bicrossed product, steps in the construction of a knot. |

120608-164511: | The meta-bicrossed-product of arrow diagrams and its underlying topology. |

120608-162419: | The meta-group of chord diagrams. |

120608-161744: | The meta-group of groups. |

120608-160926: | The meta-group of tangles. |

120607-171342: | The Lie algebra structure on wheels and trees. |

120607-171334: | Wheels and trees. |

120607-170318: | PBW in the w-case. |

120607-164945: | ${\mathcal A}^w$. |

120607-164035: | $Z^w$. |

120607-155332: | The Roman XII relation. |

120607-154543: | The quadratic approximation to v-tangles. |

120607-153804: | An aside on braid-like and cyclic Reidemeister moves. |

120607-151653: | Virtual tangles and their projectivization. |

120607-145824: | Planar algebras and circuit algebras. |

120606-180443: | Tangle closures and ribbon knots. |

120606-174143: | Exponentials, flows, conjugation. |

120606-172903: | Interpretation as differential operators. |

120606-170311: | The map into ${\mathcal U}(I{\mathfrak g})$. |

120606-164744: | The homomorphic expansion for $wB_n$. |

120606-163407: | More 6T, $qG$-expansions. |

120606-162058: | The 6T Relation. |

120606-161337: | The degree 1 piece of $qG$. |

120606-153629: | $PwB_n$, projectivization. |

120606-151141: | No title. |

120606-143931: | The Scheme: Topology, Combinatorics, Low and High Algebra. |

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Caen is a town in Normandy. Here it refers to the workshop linked here.

Notes for BBS/Caen-120608-162419.jpg: [edit]