user avatar
user avatar
user avatar
Pascal Engeler
  • Member for 8 years, 11 months
  • Last seen more than 3 years ago
11 votes
3 answers
3k views

Is it possible to solve this equation by hand?

9 votes
1 answer
10k views

Integrate complex conjugate

5 votes
1 answer
3k views

Preimage of open pathwise connected set is pathwise connected

3 votes
3 answers
547 views

Strange Partial Fractions Decomposition

3 votes
3 answers
147 views

Value of this infinite sum

3 votes
1 answer
755 views

Splitting short exact sequence of space groups

3 votes
0 answers
80 views

Show that a certain operator is symmetric

3 votes
1 answer
681 views

Show that map is conformal

3 votes
1 answer
75 views

Parametrization of unit sphere in $\mathbb{R}^3$

2 votes
1 answer
104 views

Facts about the tensor product

2 votes
1 answer
668 views

Taylor expansion of the electrostatic potential $1/\|\cdot \|$

1 vote
1 answer
291 views

Prove that for density operators, if $\rho=\sum_i \rho_i P_i$ then $\log\rho=\sum_i P_i\log \rho_i$

1 vote
2 answers
124 views

$-\varepsilon\log(x)\overset{?}{\geq} -\log(\varepsilon x)$

1 vote
2 answers
144 views

DFT of binomial coefficients

1 vote
0 answers
49 views

Statement about density operators, proof feedback

1 vote
2 answers
134 views

How to prove two trigonometric identities

0 votes
1 answer
1k views

Powers of a unitary matrix

0 votes
1 answer
48 views

Compute gradient of this expression more quickly

0 votes
0 answers
605 views

Commuting self adjoint operators