gap> Orbifold:=ContractibleGcomplex("PGL(3,Z[i])");
Non-free resolution in characteristic 0 for matrix group .
No contracting homotopy available.
gap> R:=FreeGResolution(Orbifold,6);
Resolution of length 5 in characteristic 0 for matrix group .
No contracting homotopy available.
gap> Homology(TensorWithIntegers(R),5);
[ 2, 2, 2, 2, 2, 4, 4 ]
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(vorverarbeitet am 2026-05-20)
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