Skip to main content
Isabella's user avatar
Isabella's user avatar
Isabella's user avatar
Isabella
  • Member for 2 years, 1 month
  • Last seen more than a month ago
5 votes
1 answer
255 views

Are manifolds with the same constant scalar curvature locally isometric?

11 votes
1 answer
158 views

Is there an invariant way to derive the energy-momentum tensor?

4 votes
0 answers
114 views

If an abelian group contains at most $n$ elements of order divisible by $n$, is it cyclic?

0 votes
0 answers
111 views

Why isn't the splitting field always Galois?

2 votes
1 answer
105 views

What are the radial geodesics of $g = dr^2 + s_c(r)^2 \hat g$?

5 votes
0 answers
101 views

How to derive the Sommerfeld radiation condition from the resolvent?

4 votes
0 answers
95 views

Does a weak solution have weak derivatives?

0 votes
0 answers
87 views

Are all extensions of fields of characteristic $0$ separable?

2 votes
0 answers
66 views

How much does the Lie algebra of Killing fields constrain the metric?

3 votes
1 answer
44 views

If $w \ge 0$ and $\mu$ is a finite measure on $X$ with $\mu(w = 0) \ge \mu(X)/2$, is $\mu(w > t) \le 2 \mu(|w - c| > t/2)$?