OBSTRUCTION IDEALS OF FLATNESS WITH RESPECT TO AN ANTI-INTEGRAL ELEMENT AND ITS LINEAR FRACTIONAL TRANSFORM
Let abe an anti-integral element over an integral domain Rand β be a linear fractional transform of α, that is,
Set If is a unit of R, then we have proved that two obstruction ideals of flatness are the same, that is, In this paper, we consider the case that is not a unit of R.
linear fractional transform, anti-integral element, denominator ideal, obstruction ideal of flatness.
