Une malencontreuse erreur entache la preuve, et l’énoncé, de la Proposition 5.1 de l’article mentionné en titre. Celle-ci affecte un sens d’implication du théorème principal. Nous en donnons ici une correction, qui indique que, étant donné un sous-groupe quasi-convexe d’un groupe hyperbolique, ou relativement hyperbolique, la collection des saturations des intersections multiples (et non pas des intersections multiples elles-mêmes) fournit une structure relativement hyperbolique graduée.
There is an unfortunate mistake in the statement and the proof of Proposition 5.1 of [DM17]. This affects one direction of the implications of the main theorem. A correction is given, that states that given a quasi-convex subgroup of a hyperbolic (or relatively hyperbolic) group, the graded relative hyperbolic structure holds with respect to saturations of -fold intersections, that are stabilizers of limit sets of -fold intersections.
Accepté le :
Publié le :
DOI : 10.5802/jep.97
Keywords: Quasi-convex subgroups, hyperbolic groups, relatively hyperbolic groups, convex cocompact groups
Mot clés : Sous-groupes quasi-convexes, groupes hyperboliques, groupes relativement hyperboliques, groupes convexes cocompacts
François Dahmani 1 ; Mahan Mj 2
@article{JEP_2019__6__425_0, author = {Fran\c{c}ois Dahmani and Mahan Mj}, title = {Corrigendum to {{\textquotedblleft}Height} graded relative hyperbolicity and quasiconvexity{\textquotedblright}}, journal = {Journal de l{\textquoteright}\'Ecole polytechnique {\textemdash} Math\'ematiques}, pages = {425--432}, publisher = {\'Ecole polytechnique}, volume = {6}, year = {2019}, doi = {10.5802/jep.97}, zbl = {07070265}, language = {en}, url = {https://jep.centre-mersenne.org/articles/10.5802/jep.97/} }
TY - JOUR AU - François Dahmani AU - Mahan Mj TI - Corrigendum to “Height graded relative hyperbolicity and quasiconvexity” JO - Journal de l’École polytechnique — Mathématiques PY - 2019 SP - 425 EP - 432 VL - 6 PB - École polytechnique UR - https://jep.centre-mersenne.org/articles/10.5802/jep.97/ DO - 10.5802/jep.97 LA - en ID - JEP_2019__6__425_0 ER -
%0 Journal Article %A François Dahmani %A Mahan Mj %T Corrigendum to “Height graded relative hyperbolicity and quasiconvexity” %J Journal de l’École polytechnique — Mathématiques %D 2019 %P 425-432 %V 6 %I École polytechnique %U https://jep.centre-mersenne.org/articles/10.5802/jep.97/ %R 10.5802/jep.97 %G en %F JEP_2019__6__425_0
François Dahmani; Mahan Mj. Corrigendum to “Height graded relative hyperbolicity and quasiconvexity”. Journal de l’École polytechnique — Mathématiques, Tome 6 (2019), pp. 425-432. doi : 10.5802/jep.97. https://jep.centre-mersenne.org/articles/10.5802/jep.97/
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