Mathematics
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Qmechanic
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I'm a theoretical physicist.

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All Questions Answers
Score Newest
answer
42
Why is this translation not a linear transformation?
Nov 25, 2019
answer
22
Relation between $SU(4)$ and $SO(6)$
Nov 30, 2012
answer
21
Why is the product of two rotation matrices not commutative?
Nov 19, 2016
answer
19
Equivalence of Two Lorentz Groups $O(3,1)$ and $O(1,3)$
Feb 8, 2014
answer
12
Dirac delta function of non-linear multivariable arguments
Dec 27, 2013
answer
12
If $XYZ=ZXY$ does $e^Xe^Ye^Z=e^Ze^Xe^Y$?
Dec 14, 2015
answer
11
An outrageous way to derive a Laurent series: why does this work?
Aug 13, 2014
answer
8
Fourier-like expansion of a closed curve in 2D
Nov 18, 2011
answer
8
When can the Lagrangian be squared without changing the stationary path?
Nov 12, 2017
answer
7
Area integral over complex plane of non-holomorphic gaussian $e^{-z\bar{z}}$
Feb 1, 2017
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134
Why can't $ i\hbar\frac{\partial}{\partial t}$ be considered the Hamiltonian operator?
117
Is spacetime flat inside a spherical shell?
100
Trackbacks from SE to the arXiv.org?
75
Why treat complex scalar field and its complex conjugate as two different fields?
74
How do I construct the $SU(2)$ representation of the Lorentz Group using $SU(2)\times SU(2)\sim SO(3,1)$?

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