10.8.3 Can you answer these questions?

10.8.3.1 FeynCalc TID PaVeLimitTo4 option leads to divergence
10.8.3.2 Which NDSolve method is most effective for the given chaotic system?
10.8.3.3 Riesz fractional derivatives/Laplacian for Lévy flights?
10.8.3.1 FeynCalc TID PaVeLimitTo4 option leads to divergence

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=299958

I'm trying to compute the Higgs to gluon pair decay at 1-loop using Feyncalc and FeynHelper (to connect with Package-X). 
I first define variables and loop part as: 
... 
[feyncalc]
 
asked by Isaac Wang https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=86643 Score of 1
10.8.3.2 Which NDSolve method is most effective for the given chaotic system?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=300022

Note: This question is for those chaotic systems where the order of maximal Lyapunov exponent is around $10^{-3}$. So it's different from normal chaotic systems like HénonHeiles system, Yang-Mills-... 
[plotting] [conditional] [code-review] [head]
 
asked by codebpr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=78049 Score of 3
10.8.3.3 Riesz fractional derivatives/Laplacian for Lévy flights?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=299809

There are pretty popular Lévy flights for diffusion with steps of infinite variance, mathematically requiring Riesz fractional derivatives, which in Fourier transform multiplies by $|k|^\alpha$. 
I ... 
[differential-equations] [random-process] [fractional-calculus]
 
asked by Jarek Duda https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53085 Score of 4