Mathematics
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James C's user avatar
James C's user avatar
James C
  • Member for 9 years
  • Last seen more than a week ago
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All Questions Answers
Score Newest
question
7
$\pi: E \rightarrow M$ ($E$ is a vector bundle) admits a global frame iff $E$ is a trivial vector bundle over $M$.
Dec 5, 2020
question
5
The existence of a local orthonormal frame
Apr 6, 2021
question
4
If two vectors are orthogonal, then is their covariant derivative 0?
Mar 29, 2021
question
4
Is there a reason that test functions are chosen to have a compact support?
Nov 10, 2021
question
4
Is there an intuitive way to understand why $\det(AB)=\det(A)\det(B)\;$?
Jun 11, 2021
question
4
Use of choice function in Urysohn's lemma?
Jun 13, 2021
question
3
Am I allowed to have an irrational distance for a rational metric space?
Dec 12, 2016
question
3
$\frac{d}{ds} \langle T, T \rangle = 2\langle \nabla_S T, T \rangle$?
Apr 30, 2021
question
3
Is $x \mapsto (x, |x|)$ locally diffeomorphic to $\mathbb R$ at $x = 0$? (there is a philosophical question)
May 28, 2021
question
3
If $y = x^2$, then what is $dy$? (What's the definition of differential?)
May 30, 2021
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How does it make sense for the universe to have started from a big bang?
7
What is intelligence?

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