Birational properties of the gap subresultant varieties
In this paper we address the problem of understanding the gaps that may occur in the subresultant sequence of two polynomials. We define the gap subresultant varieties and prove that they are rational and have the expected dimension. We also give explicitly their corresponding prime ideals. (C) 2004 Elsevier Ltd. All rights reserved.
gap subresultant varieties subresultant sequence local coordinate system