Why use $SU(3)$ and not $SL(3, \mathbb{R})$ for color charge?
55316
Why is the Yang-Mills gauge group assumed compact and semi-simple?
89805
2-dimensional Lie subgroups of $SO(3)$
38127
Equivalence between Kähler condition and $\partial_kg_{i\bar j} = \partial_ ig_{k\bar j}$
23037
Computing the order of $\mathrm{SL}_2(\mathbb F_p)$ as the kernel of $\mathrm{GL}_2(\mathbb F_p)$
79994
What exactly means "is a singlet under $SU(N)$"
94047
How I could define a inner product in the characters in $SL(2, \mathbb R)$
45559
Why we use $L_2$ Space In QM?
62832
What is the Killing form of $\mathfrak{gl}_{m}$?
72548
Lie group embeddings $SO(10) \supset SU(3) \times SU(2) \times U(1)?$
16644
Why does cancellation of dots $\frac{\partial \dot{\mathbf{r}}_i}{\partial \dot{q}_j} = \frac{\partial \mathbf{r}_i}{\partial q_j}$ work?
110738
What do the supercharges in extended supersymmetry do?
147175
Why are the 'color-neutral' gluons confined?
103380
Is $\operatorname{height} \mathfrak{p} + \dim A / \mathfrak{p} = \dim A$ true?
147827
How to calculate $|\operatorname {SL}_2(\mathbb Z/N\mathbb Z)|$?
155208
Why aren't Christoffel symbols tensors? - asked from a fibre bundle perspective
19499
Why is cross product only defined in 3 and 7 dimensions?
13292
Which of $\{J_0,J_1,J_2\}$ and $\{J_0,J_+,J_-\}$ is a generator for the Lie algebra $\mathfrak{su}(2)$?