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I had a discussion regarding the region of spacetime visible to an observer falling into aSchwarzschild black hole. Using Eddington-Finkelstein coordinates this is rather straightforward, at least graphically.
However the situation is rather artificial b/c the BH exists externally. So my question is whether there are solutions or at least Penrose diagrams combining a black hole with a closed Friedmann universe, i.e. something like big bang - dust - collaps (= black hole formation) - static black hole - ... big crunch
However the situation is rather artificial b/c the BH exists externally. So my question is whether there are solutions or at least Penrose diagrams combining a black hole with a closed Friedmann universe, i.e. something like big bang - dust - collaps (= black hole formation) - static black hole - ... big crunch