Representation stability for homotopy automorphisms
Algebraic and Geometric Topology, Tome 24 (2024) no. 5, pp. 2673-2705

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We consider in parallel pointed homotopy automorphisms of iterated wedge sums of finite CW–complexes and boundary-relative homotopy automorphisms of iterated connected sums of manifolds minus a disk. Under certain conditions on the spaces and manifolds, we prove that the rational homotopy groups of these homotopy automorphisms form finitely generated FI ⁡ –modules, and thus satisfy representation stability for symmetric groups in the sense of Church and Farb. We also calculate explicit bounds on the weights and stability degrees of these FI ⁡ –modules.

DOI : 10.2140/agt.2024.24.2673
Keywords: representation stability, homotopy automorphisms

Lindell, Erik 1 ; Saleh, Bashar 2

1 Department of Mathematical Sciences, University of Copenhagen, Copenhagen, Denmark
2 Department of Mathematics, Stockholm University, Stockholm, Sweden
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Lindell, Erik; Saleh, Bashar. Representation stability for homotopy automorphisms. Algebraic and Geometric Topology, Tome 24 (2024) no. 5, pp. 2673-2705. doi: 10.2140/agt.2024.24.2673

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