New posts in Group Representations

What is the exact relation between $\mathrm{SU(3)}$ flavour symmetry and the Gell-Mann–Nishijima relation

$(\frac{1}{2},\frac{1}{2})$ representation of $SU(2)\otimes SU(2)$

Adjoint representation of the Lorentz group

What does a $\rm SU(2)$ isospin doublet really mean?

Dirac spinor and Weyl spinor

$\mathrm{SU(3)}$ decomposition of $\mathbf{3} \otimes \mathbf{\bar{3}} = \mathbf{8} \oplus \mathbf{1}$?

Tensor Operators

When are there enough Casimirs?

Irreducible Representations Of Lorentz Group

Adding 3 electron spins