isHomogeneous(f)
Checks whether a deformation f is homogeneous with respect to the small torus grading, i.e., the grading added to R = simplexRing f by addCokerGrading.
i1 : R=QQ[x_0..x_4];
i2 : addCokerGrading(R); 5 4 o2 : Matrix ZZ <-- ZZ
i3 : I=ideal(x_0*x_1,x_1*x_2,x_2*x_3,x_3*x_4,x_4*x_0) o3 = ideal (x x , x x , x x , x x , x x ) 0 1 1 2 2 3 3 4 0 4 o3 : Ideal of R
i4 : mg=mingens I; 1 5 o4 : Matrix R <-- R
i5 : f=firstOrderDeformation(mg, vector {-1,-1,0,2,0}) 2 x 3 o5 = ---- x x 0 1 o5 : first order deformation space of dimension 1
i6 : isHomogeneous f o6 = true