From Drorbn
| Date(s)
| Link(s)
|
| 2010/02/22
| ???
|
| 2010/01/20
| Formal integration
|
| 2010/01/13
| Combing wB
|
| 2010/01/06
| Exponentiation in tder
|
| 2009/09/22
| descending v-knots
|
| 2009/08/26
| red over green v-tangles
|
| 2009/08/19
| Polyak Algebra
|
| 2009/07/08
| Immanants
|
| 2009/07/01
| Alexander modules
|
| 2009/06/24
| Alexander modules
|
| 2009/06/10
| Alexander, PBW for A^w, class videos
|
| 2009/06/03
| Low key
|
| 2009/05/06
| Low key
|
| 2009/04/29
| Winter on Ribbons
|
| 2009/04/22
| Misc
|
| 2009/04/15
| KV
|
| 2009/03/25
| KV
|
| 2009/03/18
| Peter Lee
|
| 2009/03/04
| Kirby calculus
|
| 2009/02/25
| Karene on Reidemeister-Schreier
|
| 2009/02/11
| Dror on Trotter, Jana on Alexander
|
| 2009/02/04
| Bracelets
|
| 2009/01/28
| gl(N) chickens
|
| 2009/01/15
| 2D Gauss Diagrams, FiC
|
| 2009/01/08
| S&G update and more
|
| 2008/12/11
| Chu on Garside, II
|
| 2008/12/04
| wZ is 1-1
|
| 2008/11/27
| The Wen
|
| 2008/11/20
| The Zoom Space
|
| 2008/11/13
| Chu on Garside
|
| 2008/11/06
| Z and GPV
|
| 2008/10/30
| Peter Lee on EHKR
|
| 2008/10/23
| Map of the Field
|
| 2008/09/25
| Hirasawa on Open Books
|
| 2008/09/18
| Odd Khovanov
|
| 2008/09/17
| Categorification.m
|
| 2008/09/11
| More wAlex
|
| 2008/09/03
| ?
|
| 2008/08/27
| Dexp and BCH
|
| 2008/08/06
| Z, A, det, tr, log
|
| 2008/07/30
| Alexander Relations Marathon
|
| 2008/07/02
| Peter Lee on horizontal Aw
|
| 2008/06/25
| w-Alexander
|
| 2008/06 16-22
| Thomas Fiedler Marathon
|
| 2008/06/11
| ?
|
| 2008/06/04
| Dylan Thurston
|
| 2008/05/28
| Welded Tangles
|
| 2008/05/21
| Bruce, Lucy
|
| 2008/04/23
| Welded Knots
|
| 2008/04/16
| Quandles and Lie algebras
|
| 2008/04/09
| No-div Alekseev-Torossian
|
| 2008/04/02
| Knotted Kung Fu Pandas
|
| 2008/03/26
| Homotopy invariants
|
| 2008/03/19
| Infinitesimal Artin
|
| 2008/03/12
| Infinitesimalization of Artin
|
| 2008/03/05
| Krzysztof Putyra on Odd Khovanov Homology
|
| 2008/02/27
| Karene Chu on Proof of Artin
|
| 2008/02/20
| Organizational, Hecke algebras
|
| 2008/02/13
| Exponential and Magnus expansions
|
| 2008/02/06
| cancelled
|
| 2008/01/30
| Artin's theorem
|
| 2008/01/16
| Hutchings' work, 2
|
| 2008/01/09
| Hutchings' work, 1
|
| 2007/12/12
| Bone soup
|
| 2007/12/05
| Expansions
|
| 2007/11/28
| Quantum groups
|
| 2007/11/21
| Surfaces and gl(N)/so(N)
|
| 2007/11/07
| Expansions for Groups
|
| 2007/10/31
| Louis Leung on bialgebra weight systems
|
| 2007/10/24
| Zsuzsi Dancso, continued
|
| 2007/10/17
| Jana Archibald on the multivariable Alexander
|
| 2007/10/10
| Zsuzsi Dancso on diagrammatic su(2)
|
| 2007/10/03
| Hernando Burgos on alternating tangles
|
| 2007/09/26
| Peter Lee on homology
|
| 2007/09/06
| Garoufalidis' visit
|
| 2007/08/30
| Art and enumeration
|
| 2007/08/23
| My Hanoi talk?
|
| 2007/08/16
| Lie bialgebra weight systems and more
|
| 2007/07/19
| Subdiagram formulas
|
| 2007/07/12
| Playing with Brunnians
|
| 2007/07/05
| Virtualization
|
| 2007/06/28
| Virtual braids
|
| 2007/06/07
| Virtual knots
|
| 2007/05/31
| Social gathering
|
| 2007/05/24
| Lee on Frozen Feet
|
|
The Plan
See The Proposed Thomas Fiedler Marathon.
Fiedler's Abstract
Title : A candidate for a calculable complete invariant for classical knots
Abstract :
To each oriented classical knot K and each natural number n one can
associate an isotopy class of a (n,n)-tangle which is an isotopy
invariant of K.
We construct two combinatorial relative 1-cocycles, called Y and Sing,
for spaces of tangels. The cocycle Y takes values in a Hecke algebra
H_n+1 with coefficients in a polynomial ring of three variables. The
cocycle Sing takes values in a module
(over some polynomial ring) freely generated by all 1-singular tangels.
For each 1-singular tangle we can consider its two non-singular
resolutions and we can apply the cocycle Y to these resolutions.
Iterating this proces, with starting point the above (n,n)-tangle,
creates a "wave" in Hecke algebras of increasing dimension. We show that
this wave is indeed "expanding" and it is a good candidate for a
complete knot invariant.
The cours will be structured as follows:
-basic notions from singularity theory and a higher order Reidemeister
theorem
-construction of polynomial valued 1-cocycles for knot spaces. The
tetrahedron and the cube equations. Calculations
-integer-valued 1-cocycles for closed braids and a new filtration on the
space of all finite type invariants for closed braids
-essential homotopies of knots and their 1-cocycle. Specific invariants
for knots of unknotting number one.
Content
Blackboard shots are at BBS/Fiedler-080616-084319.jpg. The programs written and a very condensed summary of our results are at Odds, Ends, Unfinished: Some HOMFLY-PT One Parameter Knot Theory Computations.
