GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
1<Verb>ChainComplexOfQuotient(Y):: EquivariantRegCWComplex --> ChainComplex</Verb><P/> 2 3<P/> Inputs a <M>G</M>-equivariant regular CW-complex <M>Y</M> 4and returns the cellular chain complex of the quotient space <M>Y/G</M>. 5 6 7 8 9