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Intersection homology of linkage spaces.

Schütz, Dirk (2016) 'Intersection homology of linkage spaces.', Journal of topology and analysis., 08 (01). pp. 25-58.


We consider the moduli spaces ℳd(ℓ) of a closed linkage with n links and prescribed lengths ℓ ∈ ℝn in d-dimensional Euclidean space. For d > 3 these spaces are no longer manifolds generically, but they have the structure of a pseudomanifold. We use intersection homology to assign a ring to these spaces that can be used to distinguish the homeomorphism types of ℳd(ℓ) for a large class of length vectors in the case of d even. This result is a high-dimensional analogue of the Walker conjecture which was proven by Farber, Hausmann and the author.

Item Type:Article
Keywords:Configuration spaces, Linkages, Intersection homology.
Full text:(AM) Accepted Manuscript
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Publisher statement:Electronic version of an article published as Journal of Topology and Analysis, 08, 01, 2016, 25-58, 10.1142/S1793525316500023 © copyright World Scientific Publishing Company
Date accepted:29 March 2015
Date deposited:30 June 2015
Date of first online publication:08 October 2015
Date first made open access:08 May 2016

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