Quasi-isometry invariance of group splittings
Annals of mathematics, Tome 161 (2005) no. 2, pp. 759-830
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We show that a finitely presented one-ended group which is not commensurable to a surface group splits over a two-ended group if and only if its Cayley graph is separated by a quasi-line. This shows in particular that splittings over two-ended groups are preserved by quasi-isometries.
@article{10_4007_annals_2005_161_759, author = {Panos Papasoglu}, title = {Quasi-isometry invariance of group splittings}, journal = {Annals of mathematics}, pages = {759--830}, publisher = {mathdoc}, volume = {161}, number = {2}, year = {2005}, doi = {10.4007/annals.2005.161.759}, mrnumber = {2153400}, zbl = {1129.20027}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.161.759/} }
TY - JOUR AU - Panos Papasoglu TI - Quasi-isometry invariance of group splittings JO - Annals of mathematics PY - 2005 SP - 759 EP - 830 VL - 161 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4007/annals.2005.161.759/ DO - 10.4007/annals.2005.161.759 LA - en ID - 10_4007_annals_2005_161_759 ER -
Panos Papasoglu. Quasi-isometry invariance of group splittings. Annals of mathematics, Tome 161 (2005) no. 2, pp. 759-830. doi: 10.4007/annals.2005.161.759
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