Zum Hauptinhalt springen
Artikel
Lizenziert
Nicht lizenziert Erfordert eine Authentifizierung

Poincaré duality pairs of dimension three

Veröffentlicht/Copyright: 8. Februar 2010
Forum Mathematicum
Aus der Zeitschrift Band 22 Heft 2

Abstract

We extend Hendriks' classification theorem and Turaev's realisation and splitting theorems for PD3-complexes to the relative case of PD3-pairs. The results for PD3-complexes are recovered by restricting the results to the case of PD3-pairs with empty boundary. Up to oriented homotopy equivalence, PD3-pairs are classified by their fundamental triple consisting of the fundamental group system, the orientation character and the image of the fundamental class under the classifying map. Using the derived module category we provide necessary and sufficient conditions for a given triple to be realised by a PD3-pair. The results on classification and realisation yield splitting or decomposition theorems for PD3-pairs, that is, conditions under which a given PD3-pair decomposes as interior or boundary connected sum of two PD3-pairs.

Received: 2007-11-03
Accepted: 2008-05-28
Published Online: 2010-02-08
Published in Print: 2010-March

© de Gruyter 2010

Heruntergeladen am 19.4.2026 von https://www.degruyterbrill.com/document/doi/10.1515/forum.2010.016/html
Button zum nach oben scrollen