activity
20142026
most citedHigher enveloping algebras

35 citations · 133 across the 18 of their papers we have counts for

collaborators

20 papers

math.AT2026

Motion planning invariants and families of subgroups

Ekansh Jauhari, Ben Knudsen

We introduce a notion of topological complexity of a group with respect to a family of subgroups, with the case of the trivial and diagonal families recovering the classical catego…

math.AT2026

Corrigendum to "Asymptotic homology of graph braid groups"

Byung Hee An, Gabriel C. Drummond-Cole, Ben Knudsen

We correct an error in the paper referred to in the title. Part of the argument is organized as a general method for establishing when (derived) functors factor through a fixed Ser…

math.AT2023

Robertson's conjecture and universal finite generation in the homology of graph braid groups

Ben Knudsen, Eric Ramos

We formulate a categorification of Robertson's conjecture analogous to the categorical graph minor conjecture of Miyata--Proudfood--Ramos. We show that these conjectures imply the…

math.AT2023

On the stabilization of the topological complexity of graph braid groups

Ben Knudsen

We establish a strong, geometric lower bound on the (sequential) topological complexity of the unordered configuration spaces of a general graph. As an application, we show that, f…

math.AT2022★ 1 cited

The topological complexity of pure graph braid groups is stably maximal

Ben Knudsen

We prove Farber's conjecture on the stable topological complexity of configuration spaces of graphs. The conjecture follows from a general lower bound derived from recent insights…

math.AT2022

Projection spaces and twisted Lie algebras

Ben Knudsen

A projection space is a collection of spaces interrelated by the combinatorics of projection onto tensor factors in a symmetric monoidal background category. Examples include class…

math.AT2021

Extremal stability for configuration spaces

Ben Knudsen, Jeremy Miller, Philip Tosteson

We study stability patterns in the high dimensional rational homology of unordered configuration spaces of manifolds. Our results follow from a general approach to stability phenom…

math.AT2020

Farber's conjecture for planar graphs

Ben Knudsen

We prove that the ordered configuration spaces of planar graphs have the highest possible topological complexity generically, as predicted by a conjecture of Farber. Our argument e…

math.AT2020★ 1 cited

On the second homology of planar graph braid groups

Byung Hee An, Ben Knudsen

We show that the second homology of the configuration spaces of a planar graph is generated under the operations of embedding, disjoint union, and edge stabilization by three atomi…

math.AT2020★ 7 cited

Embedding calculus and smooth structures

Ben Knudsen, Alexander Kupers

We study the dependence of the embedding calculus Taylor tower on the smooth structures of the source and target. We prove that embedding calculus does not distinguish exotic smoot…

math.AT2020★ 3 cited

Asymptotic homology of graph braid groups

Byung Hee An, Gabriel C. Drummond-Cole, Ben Knudsen

We give explicit formulas for the asymptotic Betti numbers of the unordered configuration spaces of an arbitrary finite graph over an arbitrary field.

math.AT2019★ 1 cited

The Lubin-Tate Theory of Configuration Spaces: I

Lukas Brantner, Jeremy Hahn, Ben Knudsen

We construct a spectral sequence converging to the Morava -theory of unordered configuration spaces and identify its E-page as the homology of a Chevalley-Eilenberg-like com…

math.AT2018

A Kuenneth theorem for configuration spaces

Kathryn Hess, Ben Knudsen

We construct a spectral sequence converging to the homology of the ordered configuration spaces of a product of parallelizable manifolds. To identify the second page of this spectr…

math.GT2018★ 17 cited

Edge stabilization in the homology of graph braid groups

Byung Hee An, Gabriel C. Drummond-Cole, Ben Knudsen

We introduce a novel type of stabilization map on the configuration spaces of a graph, which increases the number of particles occupying an edge. There is an induced action on homo…

math.AT2018★ 6 cited

Configuration spaces in algebraic topology

Ben Knudsen

These expository notes are dedicated to the study of the topology of configuration spaces of manifolds. We give detailed computations of many invariants, including the fundamental…

math.AT2017

Configuration spaces of products

William Dwyer, Kathryn Hess, Ben Knudsen

We show that the configuration spaces of a product of parallelizable manifolds may be recovered from those of the factors as the Boardman-Vogt tensor product of right modules over…

math.AT2017★ 15 cited

Subdivisional spaces and graph braid groups

Byung Hee An, Gabriel C. Drummond-Cole, Ben Knudsen

We study the problem of computing the homology of the configuration spaces of a finite cell complex . We proceed by viewing , together with its subdivisions, as a subdivision…

math.AT2016★ 23 cited

Betti numbers of configuration spaces of surfaces

Gabriel C. Drummond-Cole, Ben Knudsen

We give explicit formulas for the Betti numbers, both stable and unstable, of the unordered configuration spaces of an arbitrary surface of finite type.

math.AT2016★ 35 cited

Higher enveloping algebras

Ben Knudsen

We provide spectral Lie algebras with enveloping algebras over the operad of little -framed -dimensional disks for any choice of dimension and structure group , and we…

math.AT2014★ 24 cited

Betti numbers and stability for configuration spaces via factorization homology

Ben Knudsen

Using factorization homology, we realize the rational homology of the unordered configuration spaces of an arbitrary manifold , possibly with boundary, as the homology of a Lie…