# The Noob

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bio website location age member for 1 year, 10 months seen Mar 21 '13 at 12:38 profile views 12

I'm an idiot, a loser, Stackexchange abuser...

# 6 Questions

 3 $0 = \left(\sqrt{p^2+m^2}-\sqrt{k^2+p^2+2\cdot k\cdot p\cos(\theta)}\right)^2 -k^2-m^2$ solving for $k$ 2 Wick Rotation Contour doesn't seem to be simply connected? 2 Dirac $\delta\left( \left[\sqrt{p^2+m^2}-\sqrt{k^2+p^2+2\cdot k\cdot p\cos(\theta)}\right]^2 -k^2-m^2 \right)$ 1 Using $\frac{1}{A+i\epsilon} = PV\frac{1}{A}-i\pi\delta(A)$ in Feynman Integrals 0 Residue Theorem for a self-intersecting closed curve?

# 73 Reputation

 +10 Wick Rotation Contour doesn't seem to be simply connected? +30 functions with multiple branch points +5 Using $\frac{1}{A+i\epsilon} = PV\frac{1}{A}-i\pi\delta(A)$ in Feynman Integrals +5 Dirac $\delta\left( \left[\sqrt{p^2+m^2}-\sqrt{k^2+p^2+2\cdot k\cdot p\cos(\theta)}\right]^2 -k^2-m^2 \right)$

 3 functions with multiple branch points

# 10 Tags

 3 complex-analysis × 4 0 problem-solving 0 integration × 4 0 measure-theory 0 quantum-field-theory × 4 0 residue-calculus 0 distribution-theory × 2 0 definite-integrals 0 algebra-precalculus 0 complex-integration

# 1 Account

 Mathematics 73 rep 6