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Feb
2
awarded  Nice Answer
Feb
1
answered Rigorous proof that $dx dy=r\ dr\ d\theta$
Feb
1
comment Differential geometry of projective bundles
@J.Cork It is a very nice book, but where exactly does it talk about projective bundles?
Feb
1
answered Definition of “well defined” in mathematics
Feb
1
awarded  Revival
Jan
30
awarded  Inquisitive
Jan
29
asked Differential geometry of projective bundles
Jan
27
awarded  Yearling
Jan
25
asked Good book on quantum probability
Jan
25
comment Metric on real projective space
Clear, and right to the point. Thank you!
Jan
25
accepted Metric on real projective space
Jan
25
asked Metric on real projective space
Jan
7
accepted Is every totally geodesic surface minimal?
Dec
30
awarded  Necromancer
Dec
22
revised Is every totally geodesic surface minimal?
edited title
Dec
22
revised Is every totally geodesic surface minimal?
added 72 characters in body
Dec
22
asked Is every totally geodesic surface minimal?
Dec
21
asked Everything about Legendre transform
Dec
17
comment Does Superman exist? (Logical analysis)
It's funny how they made the problem politically correct by writing "Superman" instead of "God". It's actually a famous problem in Philosophy, called "Theodicy".
Dec
16
comment Moment map in general
@MikeMiller Nope. It's just referred to as "the differential of the group action", or sometimes as "the action of the Lie algebra on $M$", everywhere I look. Maybe that's all that there is to it. And I can't find anything either about its interpretation as $\mathfrak{g}^*$-valued vector field...but well that's subjective, maybe it helps only my own intuition.