activity
20112024
most citedHomotopy theory of complete Lie algebras and Lie models of simplicial sets

17 citations · 60 across the 15 of their papers we have counts for

collaborators

21 papers

math.AT2024

Explicit Quillen models for Cartesian products of -cones

Urtzi Buijs, José Carrasquel, Lucile Vandembroucq

We give an explicit minimal Quillen model for the Cartesian product of rational -cones in terms of derivations and a binary operation $\star \colon \mathbb{M}(V)\oti…

math.AT2024

Sectional category à la Quillen

Urtzi Buijs, José Carrasquel

In this note we give a characterization of the sectional category of a map between rational spaces in terms of its Koszul-Quillen model.

math.AT2019

Formality criteria in terms of higher Whitehead brackets

Urtzi Buijs, José M. Moreno-Fernández

We provide two criteria for discarding the formality of a differential graded Lie algebra in terms of higher Whitehead brackets, which are the Lie analogue of the Massey products o…

math.AT2018

Rational maps from Euclidean Configuration Spaces to Spheres

Urtzi Buijs, Antonio Garvin, Aniceto Murillo

In this note we give an algorithm to determine the rational homotopy type of the free and pointed mapping spaces and .…

math.AT2018

Symmetric Lie models of a triangle

Urtzi Buijs, Yves Félix, Aniceto Murillo +1

R. Lawrence and D. Sullivan have constructed a Lie model for an interval from the geometrical idea of flat connections and flows of gauge transformations. Their model supports an a…

math.AT2018★ 5 cited

A-infinity structures and Massey products

Urtzi Buijs, José Manuel Moreno-Fernández, Aniceto Murillo

We show how and when it is possible to detect and recover higher Massey products on the cohomology of a differential graded algebra with higher multiplications on quasi-iso…