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Ryan Hendricks's user avatar
Ryan Hendricks's user avatar
Ryan Hendricks's user avatar
Ryan Hendricks
  • Member for 2 years, 5 months
  • Last seen this week
1 vote
0 answers
52 views

Finding the right change of variables.

2 votes
1 answer
61 views

Prove the following inequality for $a,b,c,d>0$.

0 votes
2 answers
60 views

Prove that $a^2-f^2+abd-acd+ace-abe-bcf+cdf+bef-def\leq 0.$ [closed]

7 votes
1 answer
160 views

Reference for a combinatorial identity involving the number of derangements

1 vote
2 answers
59 views

Is it true that the curves $f(x,y)=0$ and $f(y,x)=0$ can only intersect on the line $x=y$?

1 vote
1 answer
127 views

Convergence to normal distribution.

0 votes
1 answer
27 views

Calculating partial derivatives for this particular function

0 votes
1 answer
37 views

Generalizing the fact that symmetric matrices have only real eigenvalues.

0 votes
1 answer
57 views

Expanding the volume element of a Riemannian manifold as a Taylor series.

0 votes
0 answers
34 views

Covariant derivative notation

2 votes
1 answer
58 views

A question about the definition of the Riemann curvature tensor.

3 votes
1 answer
116 views

Why is the following property true for the Schouten tensor?

0 votes
1 answer
49 views

Hessian in abstract notation

2 votes
0 answers
253 views

Calculating the laplacian for a metric

0 votes
1 answer
128 views

Confusion regarding $|A|^2 \int\limits_{-\infty}^\infty e^{i(p-p')x/h}=|A|^2 2\pi h\delta(p-p')$