Back ادوارد ستيفل ARZ ادوارد اشتیفل AZB Eduard Stiefel Catalan Eduard Stiefel German Eduard Stiefel Spanish ادوارد اشتیفل Persian Eduard Stiefel French Eduard Stiefel Italian エドゥアルト・シュティーフェル Japanese Eduard Stiefel Portuguese
Eduard Stiefel | |
|---|---|
 Eduard Stiefel, 1955 | |
| Born | 21 April 1909 |
| Died | 25 November 1978 (aged 69) Zürich |
| Nationality | Swiss |
| Alma mater | ETH Zurich |
| Scientific career | |
| Fields | Mathematics |
| Institutions | ETH Zürich |
| Doctoral advisor | Heinz Hopf |
| Doctoral students | Corrado Böhm Fritz-Rudolf Güntsch Werner Gysin Peter Henrici Urs Kirchgraber Peter Läuchli Max Rössler Ambros Speiser Carl August Zehnder |
Eduard L. Stiefel (21 April 1909 – 25 November 1978) was a Swiss mathematician. Together with Cornelius Lanczos and Magnus Hestenes, he invented the conjugate gradient method, and gave what is now understood to be a partial construction of the Stiefel–Whitney classes of a real vector bundle, thus co-founding the study of characteristic classes.