Talk:Weyl's postulate/to do

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tasks for expert:

  • write and link to articles on ADM formalism,
  • explain hyperslices and evolving geometry therein,
  • write and link to articles giving explicit examples of congruences with zero and nonzero vorticity in flat and curved spacetimes,
  • explain therein the relation to locally non-rotating and to fluid dynamics,
  • write articles on Bianchi dusts, Wainwright solutions, etc.