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We show that the color restriction map $\mathrm{Op}^h({\mathcal{SC}}_m,{\mathcal{SC}}_n)\to \mathrm{Op}^h({\mathcal E}_{m-1},{\mathcal E}_{n-1})$ from the derived mapping space of Swiss cheese operads to that of little discs operads, is a…

Algebraic Topology · Mathematics 2026-02-17 Victor Turchin

We study bicolored configurations of points in the Euclidean $n$-space that are constrained to remain either inside or outside a fixed Euclidean $m$-subspace, with $n - m \ge 2$. We define a higher-codimensional variant of the Swiss-Cheese…

Algebraic Topology · Mathematics 2022-05-04 Najib Idrissi

We study ordered configuration spaces of compact manifolds with boundary. We show that for a large class of such manifolds, the real homotopy type of the configuration spaces only depends on the real homotopy type of the pair consisting of…

Algebraic Topology · Mathematics 2024-06-25 Ricardo Campos , Najib Idrissi , Pascal Lambrechts , Thomas Willwacher

We introduce a new operad, which we call the Swiss-cheese operad. It mixes naturally the little disks and the little intervals operads. The Swiss-cheese operad is related to the configuration spaces of points on the upper half-plane and…

Quantum Algebra · Mathematics 2007-05-23 Alexander A. Voronov

We express the rational homotopy type of the mapping spaces $\mathrm{Map}^h(\mathsf D_m,\mathsf D_n^{\mathbb Q})$ of the little discs operads in terms of graph complexes. Using known facts about the graph homology this allows us to compute…

Quantum Algebra · Mathematics 2017-03-20 Benoit Fresse , Victor Turchin , Thomas Willwacher

In this work we present an explicit operad morphism that is also a homotopy equivalence between the operad given by the real Fulton MacPherson compactification of configuration spaces and the little $n$-disks operad. In particular, the…

Algebraic Topology · Mathematics 2011-10-17 Eduardo Hoefel

We develop the details of Kontsevich's proof of the formality of little N-disks operad over the field of real numbers. Formality holds in the category of operads of chain complexes and also in some sense in the category of commutative…

Algebraic Topology · Mathematics 2015-03-13 Pascal Lambrechts , Ismar Volic

We prove that if a pair of semi-cosimplicial spaces (X,Y) arise from a coloured operad then the semi-totalization sTot(Y) has the homotopy type of a relative double loop space and the pair (sTot(X),sTot(Y)) is weakly equivalent to an…

Algebraic Topology · Mathematics 2016-07-20 J. Ducoulombier

The Swiss-Cheese operads, which encode actions of algebras over the little $n$-cubes operad on algebras over the little $(n-1)$-cubes operad, comes in several variants. We prove that the variant in which open operations must have at least…

Algebraic Topology · Mathematics 2025-05-13 Najib Idrissi , Renato Vasconcellos Vieira

We describe combinatorial Hopf (co-)operadic models for the Swiss Cheese operads built from Feynman diagrams. This extends previous work of Kontsevich and Lambrechts-Voli\'c for the little disks operads.

Quantum Algebra · Mathematics 2021-09-17 Thomas Willwacher

In the present work, we extract pairs of topological spaces from maps between coloured operads. We prove that those pairs are weakly equivalent to explicit algebras over the one dimensional Swiss-Cheese operad SC_{1}. Thereafter, we show…

Algebraic Topology · Mathematics 2017-04-26 Julien Ducoulombier

This paper proves Koszul duality for coloured operads and uses it to introduce strongly homotopy operads as a suitable homotopy invariant version of operads. It shows that rational chains on configuration spaces of points in the plane form…

Quantum Algebra · Mathematics 2007-05-23 Pepijn van der Laan

This paper is a survey on the homotopy theory of $E_n$-operads written for the new handbook of homotopy theory.

Algebraic Topology · Mathematics 2018-12-03 Benoit Fresse

We build a model in groupoids for the Swiss-Cheese operad, based on parenthesized permutations and braids, and we relate algebras over this model to the classical description of algebras over the homology of the Swiss-Cheese operad. We…

Algebraic Topology · Mathematics 2017-09-25 Najib Idrissi

We extend the rational homotopy theory of operads developed by B. Fresse to several types of modules over operads.

Algebraic Topology · Mathematics 2024-12-17 Thomas Willwacher

We prove the existence of minimal models a la Sullivan for operads with non-trivial arity zero. So, up to homotopy algebras with strict units are just operad algebras over these minimal models. As an application we give another proof of the…

Algebraic Topology · Mathematics 2019-12-19 Agusti Roig

In this note, we prove that the Swiss-cheese operad is not formal. We also give a criteria in terms of Massey operadic product for the non-formality of a topological operad.

Algebraic Topology · Mathematics 2015-06-12 Muriel Livernet

The little $n$-disks operad is $SO(n)$ and $O(n)$-equivariantly formal over the rationals. Equivalently, the oriented and unoriented framed little disks operads are rationally formal as $\infty$-operads.

Algebraic Topology · Mathematics 2026-05-26 Pedro Boavida de Brito , Joana Cirici , Geoffroy Horel

We study the homotopy derivations of the framed little discs operads, which correspond to the homotopy derivations of the BV2n operads. By extending a result by Willwacher about the homotopy derivations of the en operads we show that the…

Algebraic Topology · Mathematics 2020-06-19 Simon Brun

We construct a set-theoretic coloured operad that may be thought of as a combinatorial model for the Swiss Cheese operad. This is the relative (or Swiss Cheese) version of the lattice path operad constructed by Batanin and Berger. By…

Algebraic Topology · Mathematics 2025-01-29 Alexandre Quesney
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