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Mathematics
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PPenguin
  • Member for 7 years, 3 months
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25
What is this 2D division algebra?
Aug 25, 2018
14
Relationship between Spin(3), SU(2), unit quaternions, and SO(3)
Apr 4, 2017
14
Finite dimensional division algebras over the reals other than $\mathbb{R},\mathbb{C},\mathbb{H},$ or $\mathbb{O}$
Aug 24, 2018
3
algebraically closed for more than simple polynomials
Aug 29, 2018
3
General dimension hairy ball theorem and division algebras
May 9, 2020
3
Groebner basis over rational vs finite field
Sep 1, 2023
2
Freedoms of solutions in matrix equation involving trace
Jun 23, 2019
2
Can the implication $(x_1 = 0) \rightarrow (p(x_1,...,x_n) = 0)$ be encoded in a system of polynomial constraints in $\mathbb{C}[x_1,...,x_n]$?
Sep 16, 2023
2
Simple demonstration of degrees of freedom of $O(1,3)$
Dec 4, 2017
2
Find values of $p$ such that $p^2-p+1$ is cubic?
Dec 13, 2017
Top network posts
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21
In what sense (if any) is Action a physical observable?
15
Electromagnetic field energy "paradox"
8
"Non-pointer POD" type in C++
7
How to see $\mathbf{E}\cdot\mathbf{B}$ is a total derivative?
7
Do galaxies have a halo of neutrinos and cosmic microwave background?