6

Questions
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3
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1
answer
120
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Are all null curves of a Lorentzian metric extrema?

mar 9 at 15:42 Robert Bryant 21.8k●3●75●97

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1
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1
answer
229
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Reference for a derivative formula for matrices

aug 29 at 18:31 Kjetil B Halvorsen 916●4●8

 
4
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1
answer
176
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Minimizing action squared versus action

aug 11 at 11:22 MathOverflow♦ 1●2●3

 
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1
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227
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Extending linear operators to multi-linear ones

feb 14 11 at 0:01 Andreas Blass 33k●4●55●110

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2
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2
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663
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Morse Theory on Non-smooth Manifolds

jul 22 10 at 21:07 Victor Protsak 7,776●1●30●44

 
6
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2
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420
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Is the limit of symplectic diffeomophisms a diffeomorphism?

jul 22 10 at 8:11 Diego Matessi 793●6●9