10,907 reputation
24876
bio website vmm.math.uci.edu
location Univ. of California at Irvine
age 84
visits member for 5 years, 2 months
seen May 14 at 20:21
I'm a Professor at UC Irvine, but spent most of my career at Brandeis. My research areas: Differential Topology, Transformation Groups, and Global Analysis. Recently I developed a math visualization program, 3D-XplorMath, freely available at http://3D-XplorMath.org) and a companion website, the Virtual Math Museum at http://VirtualMathMuseum.org. Last year I co-authored a differential equations text with my son Bob, most of which is downloadable from http://ode-math.com .

Aug
23
accepted Algorithm for finding inverse images of a local diffeomorphism
Aug
22
comment Algorithm for finding inverse images of a local diffeomorphism
@Nanda For the application I have in mind, F will be given by a formula.
Aug
22
asked Algorithm for finding inverse images of a local diffeomorphism
Aug
4
awarded  Popular Question
Aug
3
awarded  Good Answer
Jul
11
comment What is a good method to find random points on the n-sphere when n is large?
@Mark Meckes Many thanks, Mark. In retrospect, if I had been more adept with my Googling I might have discovered that the Gaussian RV approach was a "well-known" answer to my question, and would not have needed to ask it on MO. But as usual, I have come away very impressed with the utility of this great website and learned a lot from the answers I received.
Jul
11
accepted What is a good method to find random points on the n-sphere when n is large?
Jul
11
awarded  Nice Question
Jul
10
asked What is a good method to find random points on the n-sphere when n is large?
Jul
4
awarded  Yearling
Jun
25
awarded  Generalist
Jun
25
awarded  dg.differential-geometry
Jun
25
awarded  Revival
Jun
25
awarded  Pundit
Jun
14
answered Calculus book in the spirit of the 18th century
Jun
9
answered Mathematics for ebook readers
May
31
awarded  Popular Question
May
30
comment A Canonical Form Theorem for $n$-forms?
@Francesco YES ! I don't think you are missing anything---that is essentially the same proof as mine. I'll have to get Kobayashi's book from the library and have a look. Many thanks for this clue.
May
30
comment A Canonical Form Theorem for $n$-forms?
@Mariano. Right, that is the way I think of it, and it was Darboux Theorem that made me think it might be true.
May
30
asked A Canonical Form Theorem for $n$-forms?