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NoetherianOperators :: RingElement * DiffOp

RingElement * DiffOp -- scaling of differential operators

Synopsis

Description

Multiplies every coefficient of D by c

i1 : R = QQ[x,y];
i2 : D = diffOp{x => x^2+ y, y^2 => 1}

       2     2
o2 = dy  + (x  + y)dx

o2 : DiffOp
i3 : y*D

         2     2     2
o3 = y*dy  + (x y + y )dx

o3 : DiffOp
i4 : 2*D

         2      2
o4 = 2*dy  + (2x  + 2y)dx

o4 : DiffOp