YangMills

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seen Jun 23 '13 at 21:58

Jul
16
awarded  Popular Question
Jul
2
awarded  Curious
Feb
22
awarded  Yearling
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1
awarded  Necromancer
Jun
25
awarded  complex-geometry
Jun
25
awarded  dg.differential-geometry
Jun
18
comment metric scaling for an inequality
Rescaling the metric tensor by $R^{-2}$ rescales distances like $R^{-1}$, which is what you want.
Jun
17
answered metric scaling for an inequality
Jun
6
comment Kahler cone of a product
Think first about tori $M=\mathbb{C}^n/\Lambda$ and $N=\mathbb{C}^m/\Lambda'$, where every Kahler class has a constant representative, and you can compute everything explicitly. You will see that in this case $K_{M\times N}$ is much larger than the cone generated by $K_M\times K_N$, essentially because of Kunneth's formula.
May
29
awarded  Popular Question
May
17
revised Dolbeault cohomology
edited tags
May
15
answered Dolbeault cohomology
May
8
comment Converse to Milnor's theorem on manifolds with nonnegative Ricci curvature.
"cook one UP"...
Apr
27
comment H^d[U(1)^n,U(1)] of the Borel cohomology and Chern-Simons theory
@Idear: why do you keep capitalizing PHYSICS?
Apr
23
comment Energy functional
your Dirichlet energy is not correct!
Apr
19
revised Jet differentials and hyperbolicity: possible mistake in the literature?
edited tags
Apr
19
comment Jet differentials and hyperbolicity: possible mistake in the literature?
I find it hard to believe that there is really a crucial mistake in the work of Demailly et al. It seems more likely that Sun's paper is not quite correct. I am particularly worried by the sentence "One can then compute... and see...".
Apr
14
awarded  Enlightened
Apr
14
awarded  Nice Answer
Mar
27
comment Another reference request about dualizing sheaves for nodal surfaces
This paper is also a classic: maths.ed.ac.uk/~aar/papers/durfee15.pdf