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Jan 28, 2011 at 7:49 vote accept Stefan Waldmann
Jan 27, 2011 at 11:53 answer added Bill Thurston timeline score: 9
Jan 27, 2011 at 10:23 comment added Stefan Waldmann @unknowngoogle: yepp, that's the standard definition
Jan 27, 2011 at 10:20 comment added Qfwfq What's a "fundamental vector field"? Is it somehow a vector field that you can obtain pointwise as "velocity" of the flow lines on $\mathbb{R}^2$ given by the induced action of a 1-parameter subgroup?
Jan 27, 2011 at 10:01 history asked Stefan Waldmann CC BY-SA 2.5