activity
19962025
most citedKhovanov's homology for tangles and cobordisms

465 citations · 978 across the 37 of their papers we have counts for

collaborators

40 papers

math.QA2025

Goldman-Turaev formality from the Kontsevich integral

Dror Bar-Natan, Zsuzsanna Dancso, Tamara Hogan +2

We present a new solution to the formality problem for the framed Goldman--Turaev Lie bialgebra, constructing Goldman-Turaev homomorphic expansions (formality isomorphisms) from th…

math.GT2025

A Fast, Strong, Topologically Meaningful and Fun Knot Invariant

Dror Bar-Natan, Roland van der Veen

In this paper we discuss a pair of polynomial knot invariants which is: * Theoretically and practically fast: can be computed in polynomial time. We can compute it in…

math.GT2024

Computing Finite Type Invariants Efficiently

Dror Bar-Natan, Itai Bar-Natan, Iva Halacheva +1

We describe an efficient algorithm to compute finite type invariants of type by first creating, for a given knot with crossings, a look-up table for all subdiagrams of…

math.GT2022★ 1 cited

A Perturbed-Alexander Invariant

Dror Bar-Natan, Roland van der Veen

In this note we give concise formulas, which lead to a simple and fast computer program that computes a powerful knot invariant. This invariant is not new, yet our formulas a…

math.GT2021★ 2 cited

Perturbed Gaussian generating functions for universal knot invariants

Dror Bar-Natan, Roland van der Veen

We introduce a new approach to universal quantum knot invariants that emphasizes generating functions instead of generators and relations. All the relevant generating functions are…

math.GT2021

Yarn Ball Knots and Faster Computations

Dror Bar-Natan, Itai Bar-Natan, Iva Halacheva +1

We make use of the 3D nature of knots and links to find savings in computational complexity when computing knot invariants such as the linking number and, in general, most finite t…