Asymptotic hereditary asphericity (AHA) is a coarse property of metric spaces and groups, introduced by T Januszkiewicz and J Swicatkowski in [Geom. Topol. 11 (2007) 727–758]. Conjecturally, this property is closed under amalgamated free products and HNN extensions over finite subgroups. We prove this conjecture for a slightly weaker property, weak asymptotic hereditary asphericity (AHA(-)), which is still strong enough for the purposes which AHA was used for in [Geom. Topol. 11 (2007) 727–758].
Jakus, Joanna  1
@article{10_2140_agt_2013_13_3031,
author = {Jakus, Joanna},
title = {Weak asymptotic hereditary asphericity for free product and {HNN} extension of groups},
journal = {Algebraic and Geometric Topology},
pages = {3031--3045},
year = {2013},
volume = {13},
number = {5},
doi = {10.2140/agt.2013.13.3031},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.3031/}
}
TY - JOUR AU - Jakus, Joanna TI - Weak asymptotic hereditary asphericity for free product and HNN extension of groups JO - Algebraic and Geometric Topology PY - 2013 SP - 3031 EP - 3045 VL - 13 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.3031/ DO - 10.2140/agt.2013.13.3031 ID - 10_2140_agt_2013_13_3031 ER -
%0 Journal Article %A Jakus, Joanna %T Weak asymptotic hereditary asphericity for free product and HNN extension of groups %J Algebraic and Geometric Topology %D 2013 %P 3031-3045 %V 13 %N 5 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.3031/ %R 10.2140/agt.2013.13.3031 %F 10_2140_agt_2013_13_3031
Jakus, Joanna. Weak asymptotic hereditary asphericity for free product and HNN extension of groups. Algebraic and Geometric Topology, Tome 13 (2013) no. 5, pp. 3031-3045. doi: 10.2140/agt.2013.13.3031
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