Zhengyuan Yue's user avatar
Zhengyuan Yue's user avatar
Zhengyuan Yue's user avatar
Zhengyuan Yue
  • Member for 3 years
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4 votes
1 answer
126 views

Asymptotic behavior of the inverse Fourier transform of $\frac{1}{|k|^2 + 1}$

3 votes
0 answers
181 views

Negative-norm States and Unitary Representation

3 votes
1 answer
313 views

When can the basis of a Lie algebra always be made Hermitian?

3 votes
0 answers
135 views

Zee's derivation of Cartan-Weyl basis

2 votes
0 answers
53 views

Relabelling Group Elements by Comparing Cayley Table

2 votes
0 answers
38 views

A determinant from the real and imaginary parts of a unitary matrix [duplicate]

1 vote
1 answer
175 views

Prove the inverse of a symplectic matrix is also symplectic

1 vote
1 answer
63 views

For skew-symmetric $U$, prove that $U(1-U^\dagger U)^{-1}$ is, too

1 vote
1 answer
122 views

What is the math behind upper and lower indices used when studying representations of $\mathrm{SU}(N)$?

1 vote
0 answers
77 views

Why (anti-)symmetric tensors are important in reducing the tensor product of representations of su($N$) and so($N$)?

1 vote
0 answers
60 views

Prove basis independence of determinant with Levi-Civita symbol

0 votes
1 answer
70 views

The matrix Lie group of complexified matrix Lie algebra

0 votes
0 answers
74 views

Weyl's unitarian trick on real vector spaces