Intersection properties of stable subgroups and bounded cohomology

Yago Antolín, M. J. Mahan, Alessandro Sisto, Samuel J. Taylor

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We show that a finite collection of stable subgroups of a finitely generated group has finite height, finite width, and bounded packing. We then use knowledge about intersections of conjugates to characterize finite families of quasimorphisms on hyperbolically embedded subgroups that can be simultaneously extended to the ambient group.

Original languageEnglish
Pages (from-to)179-199
Number of pages21
JournalIndiana University Mathematics Journal
Issue number1
Publication statusPublished - 2019

ASJC Scopus subject areas

  • Mathematics(all)


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