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Mathematics
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dahemar
  • Member for 8 years, 8 months
  • Last seen more than a month ago
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21
What is the name of the circle that is tangent to three mutually-tangent circles centered at the vertices of a triangle?
Jul 15, 2016
question
14
What's the intuition behind the identities $\cos(z)= \cosh(iz)$ and $\sin(z)=-i\sinh(iz)$?
Apr 10, 2016
question
10
Why are second order linear PDEs classified as either elliptic, hyperbolic or parabolic?
May 8, 2016
question
9
A Riemann surface $X$ is hyperelliptic iff there is a holomorphic involution of $X$ that has exactly $2g(X)+2$ fixed points
Apr 25, 2023
question
9
The degree of a meromorphic form in a genus $g$ Riemann surface is equal to $2g-2$… is this in some way related to the Gauss-Bonnet theorem?
Apr 17, 2023
question
7
Relationship between Möbius transformations and flows/vector fields
May 2, 2016
question
7
Need help with $\int_{-\infty}^\infty \frac{x^2 \, dx}{x^4+2a^2x^2+b^4}$
May 23, 2016
question
5
Is there a relationship between the Cantor set and hyperbolic geometry?
Nov 16, 2016
question
5
If $R$ is a noetherian ring, then $ab=1$ implies $ba=1$ $\forall a,b\in R$
Jun 30, 2021
question
5
Why is the ring homomorphism $\Gamma: D^{o}\rightarrow \text{End}_{M_n(D)}(D^n)$, where $D$ is a division ring, a bijection?
May 5, 2021
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57
Is there an underlying physical reason why the Coriolis force is similar to the magnetic component of the Lorentz force?
42
Why is there this relationship between quaternions and Pauli matrices?
19
Can we think of the EM tensor as an infinitesimal generator of Lorentz transformations?
14
Pressure standing wave nodes at the end of the open side of a tube
12
Understanding Gibbs $H$-theorem: where does Jaynes' "blurring" argument come from?