Publications Books Curriculum Vita ( 2022) The math I do. Mostly (over the last 20 + years) I work on the N-body problem. I was trained in geometric mechanics. Work on geometric phases led me to the falling cat problem which led to subRiemannian geometry, then control theory, and eventually to the three-body problem , viewed as an idealized cat. I continue work in these other areas. unpublished math lecture(s) etc by colleagues recommended math books . classes taught.

Short Story / Essays I've written Beautiful web sites quotes I paddle. I love being on water:

N-body solutions animated subRiemannian Falling Cats they did the coin flip experiment! (posted Oct 12, 2023 ) video. slides. audio. of or by me. Open Problem Lists Photos Teacher Circle Nonlinearity Collaborators Ph.D. Student Ph.D. student theses