Welcome to my home page.
Last updated February 17, 2017 I am a professor emeritus of mathematics at the University of Minnesota. In plain english, this means that I retired at the end of the 200809 school year. For now, my plan is to actively maintain my interactive pictures of polyhedra and algebraic surfaces. Other parts of this web page will be updated from time to time, as needed. My main research areas are Algebraic Geometry and Commutative Algebra. I have taught graduate courses in areas related to my research interests, and undergraduate courses in a wide range of subjects. Materials related to my research and to some of my courses are linked below. Please scroll down or click on one of these links to view these materials and related links:

You can move the pictures by grabbing them with the mouse. (Your viewer needs to be Java enabled . . . )
Prof. Joel Roberts
School of Mathematics
University of Minnesota
Minneapolis, MN 55455
USA
Office: 531 Vincent Hall
Phone: (612) 6269135
Dept. FAX: (612) 6262017
email: roberts@math.umn.edu
http://www.math.umn.edu/~rober005
The opinions expressed in this page are strictly those of the page author. The contents of this page have not been reviewed or approved by the University of Minnesota.