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Dec 18, 2015 at 14:14 answer added John B timeline score: 2
Dec 7, 2015 at 22:24 history edited WoofDoggy
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Dec 7, 2015 at 22:16 comment added Thomas Rot There is a huge literature on this, with many flavors. A classical problem where this idea is applied is the question of existence of closed geodesics. A keyword is calculus of variations.
Dec 7, 2015 at 22:04 history asked WoofDoggy CC BY-SA 3.0