I define a M manifold with three charts, I then define a metric on one of the charts MH. I then want to see the metric components in one of the other charts BL. I have defined differential maps between the charts.
gMann(MH) works and I can display the components but,
gMann(BL) gives the error:
ValueError: the provided domain is not a subset of the field's domain
print(subdomain,self._restrictions) gives 'Open subset MBL of the 4-dimensional Lorentzian manifold M {}' .
How do I make this work please? I will post the code in comments below.
