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visits member for 3 years, 4 months
seen Mar 4 '12 at 12:14

I'm a chemist researcher, working now for a french company making high-performance materials.


Sep
24
awarded  Autobiographer
Oct
14
awarded  Scholar
Oct
14
accepted Phase space of a discrete dynamical system
Oct
14
comment Phase space of a discrete dynamical system
Thanks, exactly what I was thinking about !
Oct
13
asked Phase space of a discrete dynamical system
Aug
5
comment Discrete gauge theories
@Marek : is there a way to contact you directly (email, ...) ? I'd like to ask a couple more questions (if you agree, of course) but I don't want to start an endless trail of comments here...
Aug
4
awarded  Teacher
Aug
4
answered Can an object accelerate to infinite speed in FINITE time (Newtonian)?
Aug
4
comment Discrete gauge theories
thanks for this explanation. However, I'm still confused when you say "...we can combine these two in an obvious way..." : I don't find that obvious at all...
Aug
4
comment Discrete gauge theories
@David Bar Moshe: unfortunately, I don't have such references (after all, I am looking for such a proof). Perhaps the key point here is that if one asks the full gauge transformation group to act transitively (which I do), then the only extensions possible are semidirect products (??)
Aug
4
comment Discrete gauge theories
@Gerben: I have a lot of papers by the same Kornyak, but in all of them he merely gives the same statement without any proof
Aug
3
comment Discrete gauge theories
Indeed... I first thought it was more mathematic-relevant, but it didn't get much attention. I thought physicists would be more familiar with it... By the way, this semidirect product (even in the case of continuous groups) seem to have been lying all over the place for more than 50 years now, but an explicit proof is still missing (or obviously implicitly implied and in that case I missed it)
Aug
3
revised Discrete gauge theories
added 141 characters in body
Aug
3
awarded  Student
Aug
3
awarded  Editor
Aug
3
revised Discrete gauge theories
deleted 7 characters in body
Aug
3
asked Discrete gauge theories