Fibred coarse embeddability of box spaces and proper isometric affine actions on $L^p$ spaces
Fibred coarse embeddability of box spaces and proper isometric affine actions on $L^p$ spaces
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DOI:
10.36045/bbms/1457560851
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发表时间:
2015-08
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通讯作者:
Sylvain Arnt
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作者:
Sylvain Arnt
We show the necessary part of the following theorem : a finitely generated, residually finite group has property $PL^p$ (i.e. it admits a proper isometric affine action on some $L^p$ space) if, and only if, one (or equivalently, all) of its box spaces admits a fibred coarse embedding into some $L^p$ space. We also prove that coarse embeddability of a box space of a group into a $L^p$ space implies property $PL^p$ for this group.