Michael Freedman | |
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Michael Freedman in 2010 | |

Born | Michael Hartley Freedman April 21, 1951 (age 68) |

Nationality | American |

Alma mater | Princeton University University of California, Berkeley |

Known for | Work on the Generalized Poincaré conjecture in dimension 4 |

Awards | Sloan Research Fellowship (1980) MacArthur Fellowship (1984) Oswald Veblen Prize in Geometry (1986) Fields Medal (1986) National Medal of Science (1987) Guggenheim Fellowship (1994) |

Scientific career | |

Fields | Mathematics |

Institutions | Microsoft Station Q UC Santa Barbara UC San Diego Institute for Advanced Study UC Berkeley |

Doctoral advisor | William Browder |

Doctoral students | Ian Agol |

**Michael Hartley Freedman** (born 21 April 1951) is an American mathematician, at Microsoft Station Q, a research group at the University of California, Santa Barbara.^{[1]} In 1986, he was awarded a Fields Medal for his work on the 4-dimensional Generalized Poincaré conjecture. Freedman and Robion Kirby showed that an exotic **R**^{4} manifold exists.

## Life and career

Freedman was born in Los Angeles, California, U.S. His father, Benedict Freedman, was an American Jewish^{[2]} aeronautical engineer, musician, writer, and mathematician.^{[3]} His mother, Nancy Mars Freedman, performed as an actress and also trained as an artist.^{[4]} His parents cowrote a series of novels together. He entered the University of California, Berkeley and after two semesters dropped out [1] in the same year he wrote a letter to Ralph Fox a Princeton professor at the time and was admitted to graduate school so in 1968 he continued his studies at Princeton University where he received Ph.D. degree in 1973 for his doctoral dissertation titled *Codimension-Two Surgery*, written under the supervision of William Browder. After graduating, Freedman was appointed a lecturer in the Department of Mathematics at the University of California, Berkeley. He held this post from 1973 until 1975, when he became a member of the Institute for Advanced Study (IAS) at Princeton. In 1976 he was appointed assistant professor in the Department of Mathematics at the University of California San Diego. He spent the year 1980/81 at IAS, returning to UC San Diego, where in 1982 he was promoted to professor. He was appointed the Charles Lee Powell chair of mathematics at UC San Diego in 1985.

Freedman has received numerous other awards and honors including Sloan and Guggenheim Fellowships, a MacArthur Fellowship and the National Medal of Science. He is an elected member of the National Academy of Sciences, and a fellow of the American Academy of Arts and Sciences and of the American Mathematical Society.^{[5]} He currently works at Microsoft Station Q at the University of California, Santa Barbara, where his team is involved in the development of the topological quantum computer.

## Publications

- Freedman, Michael Hartley (1982), "The topology of four-dimensional manifolds",
*Journal of Differential Geometry*,**17**(3): 357–453, ISSN 0022-040X, MR 0679066 - Michael H. Freedman and Frank Quinn,
*Topology of 4-manifolds*, Princeton Mathematical Series, vol 39, Princeton University Press, Princeton, New Jersey, 1990. ISBN 0-691-08577-3 - Freedman, Michael H.: Z2-systolic-freedom. Proceedings of the Kirbyfest (Berkeley, California, 1998), 113–123 (electronic), Geom. Topol. Monogr., 2, Geom. Topol. Publ., Coventry, 1999.
- Freedman, Michael H.; Meyer, David A.; Luo, Feng: Z2-systolic freedom and quantum codes. Mathematics of quantum computation, 287–320, Comput. Math. Ser., Chapman & Hall/CRC, Boca Raton, Florida, 2002.

## References

Wikimedia Commons has media related to .Michael Freedman |

**^**Microsoft Station Q Group at UCSB. (Station Q at the Wayback Machine (archived January 29, 2008))**^***Planting and Reaping Albright: Politics, Ideology, and Interpreting the Bible*, By Burke O. Long (Penn State Press, 2008), page 21**^**Nelson, Valerie J. (March 4, 2012), "Benedict Freedman dies at 92; author and Occidental professor",*Los Angeles Times*.**^**McLellan, Dennis (August 22, 2010), "Nancy Freedman dies at 90; feminist had long and wide-ranging literary career",*Los Angeles Times*.**^**List of Fellows of the American Mathematical Society, retrieved 2012-12-29.