Fax: (530) 752-6635
email: hass(at symbol)math.ucdavis.edu
The focus of my research is on problems in three dimensional geometry and topology. This subject contains many fascination problems, some with important applications.
Many of my recent preprints are available on the math arxives.
I am working with Nina Amenta and Patrice Koehl on a project on the geometry of proteins.
The behavior of proteins and other biological molecules is significantly affected by their geometry. There are numerous fascinating geometric problems that are closely related to biological applications in this area.
I did some work related to Computer Aided Design with Rida Farouki. It can be seen here.
Minimal Surfaces and Constant Mean Curvature Surfaces are models for soap films and for optimizing shapes that enclose given volumes.
Click here for information and graphics on
Double Bubbles.
I have looked at various aspects of the motions of curves and surfaces, with dynamics related to the curvature.
Click here for material on Curve Flows.
You can draw a curve and see it flow on your web browser.
My department profile (somewhat dated) can be found at:
Department of Mathematics Profiles - Hass
It includes a description of my research and links to my publication list.
Editorial Boards
I am on the editorial board of
Geometriae Dedicata
and
Media-Enhanced Mathematics
Calculus
Duane Kouba and I manage a central
web site for all things related to calculus at:
www.calculus.org.
Kayaking
Some kayaking pictures can be found here: Gorge 5/12/2007. May take a while to download.
It evolves a curve to the shortest curve in its homotopy class
1. The standard 11th edition of Thomas' Calculus.
2. The Early Transcendentals 11th edition of Thomas' Calculus. (In this book the trigononometric,
exponential and logarithm functions are treated sooner than in the standard version.)
3. The international 11th edition of Thomas' Calculus.
1. The standard 1st edition of University Calculus.
University Calculus gives a more concise and focused treatment of calculus.
This is an early transcendentals textbook.
2. The Alternate 1st edition of University Calculus.
3. The 1st edition of University Calculus Elements.
Also early transcendentals.
Even more concise.