ring(CellComplex) -- return the base ring of a cell complex

• Function: ring

• Usage:

  ring C

• Inputs:
  • C, a cell complex,
• Outputs:
  • a ring, the base ring of the cell complex C

i1 : R = QQ[x,y];

i2 : vx = newSimplexCell({},x);

i3 : vy = newSimplexCell({},y^2);

i4 : e = newSimplexCell {vx,vy};

i5 : C = cellComplex(R,{e});

i6 : ring(C)

o6 = R

o6 : PolynomialRing