Question about the Lehmann-Kallen representation in Srednicki
37291
Why does the branch cut of the self-energy begin at $2m$?
147934
On Tarski-Knaster theorem
110217
$GL(n,K)$ is open in $M(n,K)$
111248
The Uniqueness of a Coset of $R[x]/\langle f\rangle$ where $f$ is a Polynomial of Degree $d$ in $R[x]$
77137
The rank of Jacobian matrix at a point of affine variety is independent of choice of generators
34714
What is the relationship between $\ker(A), \ker(A^2), \ldots, \ker(A^n)$?
133238
Why does $\mathrm{Tor}_0^R(M,N)\cong M\otimes_R N$?
45179
When does the isomorphism $G\simeq \ker(\phi)\times \operatorname{im}(\phi)$? hold?
155195
Contraction of Kronecker delta = 4
56647
Structure of $Gal(\mathbb{Q}(\zeta_{15})/\mathbb{Q})$?
132081
Geometrical interpretation of $(\sum_{k=1}^n k)^2=\sum_{k=1}^n k^3$
28145
What is $\Gamma(z) \Gamma(\bar {z})$?
102871
$\langle r\rangle$ maximal $\iff r$ irreducible
148633
Description of varieties in $\mathbb{P}^2\times \mathbb{P}^1$
111056
Harmonic conjugate of $\ln|z|$ in $\mathbb C \setminus \{0\}$
717
Proof of Frullani's theorem
120130
Baker-Hausdorff Lemma from Sakurai's book