Siddhesh Joshi (Editor)

Joel Hass

Updated on
Edit
Like
Comment
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
Name
  
Joel Hass


Joel Hass httpsuploadwikimediaorgwikipediacommonsthu

Education
  
University of California, Berkeley

Books
  
How to Ace the Rest of Calculus, Thomas' Calculus Early Tra, Early Transcendentals, Thomas' Calculus: Early Tra, University Calculus - Early Tra

Joel hass university of california davis random topics and random knots


Joel Hass is an American mathematician, a professor of mathematics and chair of the mathematics department at the University of California, Davis.

Contents

Obstructions to minimal fibrations of hyperbolic 3 manifolds joel hass


Biography

Hass received his Ph.D. from the University of California, Berkeley in 1981 under the supervision of Robion Kirby. He joined the Davis faculty in 1988.

In 2012 he became a fellow of the American Mathematical Society.

Research contributions

Hass is known for proving the equal-volume special case of the double bubble conjecture, for proving that the unknotting problem is in NP, and for giving an exponential bound on the number of Reidemeister moves needed to reduce the unknot to a circle.

Selected publications

Research papers
  • Freedman, Michael; Hass, Joel; Scott, Peter (1983), "Least area incompressible surfaces in $3$-manifolds", Inventiones Mathematicae, 71 (3): 609–642, MR 695910, doi:10.1007/BF02095997 .
  • Hass, Joel; Lagarias, Jeffrey C.; Pippenger, Nicholas (1999), "The computational complexity of knot and link problems", Journal of the ACM, 46 (2): 185–211, arXiv:math/9807016 , doi:10.1145/301970.301971 .
  • Hass, Joel; Schlafly, Roger (2000), "Double bubbles minimize", Annals of Mathematics. Second Series, 151 (2): 459–515, MR 1765704, doi:10.2307/121042 .
  • Hass, Joel; Lagarias, Jeffrey C. (2001), "The number of Reidemeister moves needed for unknotting", Journal of the American Mathematical Society, 14 (2): 399–428, MR 1815217, doi:10.1090/S0894-0347-01-00358-7 .
    • Books
  • Adams, Colin; Hass, Joel; Thompson, Abigail (1998), How to Ace Calculus: The Streetwise Guide, New York: W.H. Freeman and Company, ISBN 0-7167-3160-6 .
  • Adams, Colin; Hass, Joel; Thompson, Abigail (2001), How to Ace the Rest of Calculus: The Streetwise Guide, New York: W.H. Freeman and Company, ISBN 0-7167-4174-1 .

    • References

    Joel Hass Wikipedia
    (Text) CC BY-SA


    Similar Topics