10.23.3 Can you answer these questions?

10.23.3.1 Faster implementation with Mathematica for these p,q-analog functions

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=305319

I have implemented some p-q analogue functions in Mathematica. 
... 
[special-functions] [combinatorics]
 

asked by 138 Aspen https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=79318 Score of 1

10.23.3.2 TimeConstrained and optimization

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=305238

I am trying to understand why wrapping  TimeConstrained[]  around optimization, e.g.,  MinValue[]  can sometimes fail. 
To reproduce ... 
[mathematical-optimization] [numerical-value] [constraint]
                                                                                  

                                                                                  
 

asked by Aharon Naiman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=45626 Score of 1

10.23.3.3 Calculate and transfrom the metric to the orthonormal frame

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=305245

Let's suppose, the line element is like this: 
$$ds^2 = -a^2(1+2\psi)d\tau^2 - 2a^2 B_idx^i d\tau + a^2(1-2\phi)(dx^2 + dy^2 + dz^2)$$ 
I like to get the output of the metric components from it, ... 
[physics] [tensors] [differential-geometry]
 

asked by raf https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=83038 Score of 1