Media type: E-Article Title: Trivial cup products in bounded cohomology of the free group via aligned chains Contributor: Amontova, Sofia; Bucher, Michelle imprint: Walter de Gruyter GmbH, 2022 Published in: Forum Mathematicum Language: English DOI: 10.1515/forum-2021-0182 ISSN: 1435-5337; 0933-7741 Keywords: Applied Mathematics ; General Mathematics Origination: Footnote: Description: <jats:title>Abstract</jats:title> <jats:p>We prove that the cup product of Δ-decomposable quasimorphisms, Brooks quasimorphisms or Rolli quasimorphisms with any bounded cohomology class of arbitrary positive degree is trivial.</jats:p>