|<!NAV>© | << < ? > >> | Dror Bar-Natan: Talks:||Links: sep oct|
Abstract. On my September 17 Geneva talk I described a certain trees-and-wheels-valued invariant of ribbon knotted loops and 2-spheres in 4-space, and my October 8 Geneva talk describes its reduction to the Alexander polynomial. Today I will explain how that same invariant arises completely naturally within the theory of finite type invariants of ribbon knotted loops and 2-spheres in 4-space.
This talk will be self-contained and the only prerequisites for it are some basic linear algebra and having no fear of exponentials.
See the paper.
Handout: KBHFT.html, KBHFT.pdf, KBHFT.png.