| Born | 3 March 1845 (age 178) Saint Petersburg, Russian Empire |
| Died | 6 January 1918 (aged 72) Halle, Germany |
| Fields | |
| Religion | Jewish |
| Alma mater | |
| Workplaces | |
| Nationality | Prussian |
| Selected works | Grundlage einer allgemeinen Mannigfaltigkeitslehre (1883) • Über unendliche, lineare Punktmannichfaltigkeiten (1879–1884) • Über eine elementare Frage der Mannigfaltigkeitslehre (1890–1891) |
| Doctoral advisor | |
| Political involvement | Advocating for Jewish interests in post-war peace negotiations |
