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Apr 5, 2017 at 7:51 vote accept Ali Taghavi
Apr 5, 2017 at 7:10 answer added Artur Jackson timeline score: 2
Apr 5, 2017 at 5:31 comment added Artur Jackson Did you try: Use that S^3 is a Lie group. So you have plenty of non-vanishing vector fields. Find one with a periodic orbit O, then homotope the field nearby to point inwards toward the orbit O.
Apr 4, 2017 at 20:00 history edited Ali Taghavi CC BY-SA 3.0
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Apr 4, 2017 at 19:43 history asked Ali Taghavi CC BY-SA 3.0