JournalslemVol. 56, No. 1/2L’Enseignement MathématiqueVolume 56, Number 1/2, 2010DOI: 10.4171/lem | ISSN: 0013-8584 | eISSN: 2309-4672Torsion automorphisms of simple Lie algebrasMark Reederpp. 3–47A Wreath Product Approach to Classical Subgroup TheoremsLuis RibesBenjamin Steinbergpp. 49–72Del Pezzo surfaces of degree 4 and their relation to Kummer surfacesAlexei N. Skorobogatovpp. 73–85Positivity of direct image sheaves a geometric point of viewAndreas Höringpp. 87–142Unsolvable problems about higher-dimensional knots and related groupsFrancisco González-AcuñaCameron GordonJonathan Simonpp. 143–171Free subgroups in groups with few relatorsJohn S. Wilsonpp. 173–185Commission Internationale de l'Enseignement Mathématique. Renouvellement du Comit excutif de la CIEMBernard R. Hodgsonpp. 187–188Commission Internationale de l'Enseignement Mathématique. Discussion Document for the Twenty-First ICMI Studypp. 189–199
Unsolvable problems about higher-dimensional knots and related groupsFrancisco González-AcuñaCameron GordonJonathan Simonpp. 143–171
Commission Internationale de l'Enseignement Mathématique. Renouvellement du Comit excutif de la CIEMBernard R. Hodgsonpp. 187–188
Commission Internationale de l'Enseignement Mathématique. Discussion Document for the Twenty-First ICMI Studypp. 189–199
