|visits||member for||5 months|
|seen||Aug 8 at 23:26|
I am a professor of mathematics at IU. My profile picture is based on the IU symbol. It is the identity element of the sandpile group on a part of the square lattice. The color coding is that height 0 is black, height 1 is blue, height 2 is red, and height 3 is dark yellow.
|bio||website||pages.iu.edu/~rdlyons||visits||member for||5 months|
|location||Bloomington, IN||seen||Aug 8 at 23:26|
3 Votes Cast
|all time||by type|