activity
20142025
most citedAugmentations and Rulings of Legendrian Links in

5 citations · 11 across the 5 of their papers we have counts for

collaborators

6 papers

math.SG2025

Decompositions of augmentation varieties via weaves and rulings

Johan Asplund, Orsola Capovilla-Searle, James Hughes +3

The braid variety of a positive braid and the augmentation variety of a Legendrian link both admit decompositions coming from weaves and rulings, respectively. We prove that these…

math.SG2023

Lagrangian cobordism of positroid links

Johan Asplund, Youngjin Bae, Orsola Capovilla-Searle +3

Casals-Gorsky-Gorsky-Simental realized all positroid strata of the complex Grassmannian as augmentation varieties of Legendrians called positroid links. We prove that the partial o…

math.SG2020

Constructions of Lagrangian cobordisms

Sarah Blackwell, Noémie Legout, Caitlin Leverson +6

Lagrangian cobordisms between Legendrian knots arise in Symplectic Field Theory and impose an interesting and not well-understood relation on Legendrian knots. There are some known…

math.SG2018★ 3 cited

Satellite ruling polynomials, DGA representations, and the colored HOMFLY-PT polynomial

Caitlin Leverson, Dan Rutherford

We establish relationships between two classes of invariants of Legendrian knots in : Representation numbers of the Chekanov-Eliashberg DGA and satellite ruling polyn…

math.SG2015★ 5 cited

Augmentations and Rulings of Legendrian Links in

Caitlin Leverson

Given a Legendrian link in , we extend the definition of a normal ruling from given by Lavrov and Rutherford and show that the existence of an augme…

math.SG2014★ 3 cited

Augmentations and Rulings of Legendrian Knots

C. Leverson

For any Legendrian knot in (R^3,ker(dz-ydx)), we show that the existence of an augmentation to any field of the Chekanov-Eliashberg differential graded algebra over Z[t,t^{-1}] is…