# Stephen Schanuel

Stephen Schanuel | |
---|---|

Born |
July 14, 1933 St. Louis, Missouri |

Died | July 21, 2014 |

Nationality | United States |

Fields | Mathematics |

Institutions | University at Buffalo |

Alma mater | Columbia University |

Doctoral advisor | Serge Lang |

Doctoral students |
W. Dale Brownawell Beifang Chen |

Known for |
Schanuel's conjecture Schanuel's lemma |

**Stephen H. Schanuel** (1934—2014) was an American mathematician working in the fields of abstract algebra and category theory, number theory, and measure theory.^{[1]}^{[2]}

## Life

While he was a graduate student at University of Chicago, he discovered Schanuel's lemma, an essential lemma in homological algebra.^{[2]} Schanuel received his Ph.D. in mathematics from Columbia University in 1963, under the supervision of Serge Lang.^{[2]}

## Work

Shortly thereafter he stated a conjecture in the field of transcendental number theory, which remains an important open problem to this day.^{[2]} Schanuel was a professor emeritus of mathematics at University at Buffalo.^{[1]}

## References

- 1 2 "Recent alumni deaths". Princeton Alumni Weekly. April 22, 2015. Retrieved 23 June 2015.
- 1 2 3 4 "Steve Schanuel has passed away". University at Buffalo, Mathematics Department. Retrieved 23 June 2015.

## External links

- Stephen Schanuel at the Mathematics Genealogy Project
- Weisstein, Eric W. "Schanuel's Conjecture".
*MathWorld*.

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