Piotr Sulkowski (Warsaw University)
Tuesday, July 13, 2021 - 14:00
Humboldt-Universit├Ąt zu Berlin
Rudower Chaussee 25, 12489 Berlin, https://hu-berlin.zoom.us/j/61339297016
The knots-quivers correspondence states that various characteristics of a knot are encoded in the corresponding quiver and the moduli space of its representations. However, this correspondence is not a bijection: more than one quiver may be assigned to a given knot and encode the same information. I will explain that this phenomenon is generic rather than exceptional. First, I will present conditions that characterize equivalent quivers. Then I will show that equivalent quivers arise in families that have the structure of permutohedra, and the set of all equivalent quivers for a given knot is parameterized by vertices of a graph made of several permutohedra glued together. These graphs can be also interpreted as webs of dual 3d N=2 theories. All these results are intimately related to properties of homological diagrams for knots, as well as to multi-cover skein relations that arise in counting of holomorphic curves with boundaries on Lagrangian branes in Calabi-Yau three-folds.
submitted by Gaetan Borot (gaetan.borot@hu-berlin.de)