Article ID Journal Published Year Pages File Type
4598041 Journal of Pure and Applied Algebra 2008 15 Pages PDF
Abstract

The type II1 unprojection is, by definition, the generic complete intersection type II unprojection, in the sense of [S. Papadakis, Type II unprojection, J. Algebraic Geometry 15 (2006) 399–414, Section 3.1], for the parameter value k=1k=1, and depends on a parameter n≥2n≥2. Our main results are the explicit calculation of the linear relations of the type II1 unprojection for any value n≥2n≥2 and the explicit calculation of the quadratic equation for the case n=3n=3 given in two theorems respectively. In addition, one of the sections contains applications to algebraic geometry.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory
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