MMN-582

A note on *complete intersections generated by linear forms

M. La Barbiera;

Abstract

Let $R$ be a commutative noetherian graded ring. In $R[Y_1,\dots,Y_m]$ we consider linear forms $a_i =\sum_{j=1} ^m a_{ji}Y_j , 1 \geq i \geq n,$ with $a_{ji}$ homogeneous elements of $R.$ We state a necessary and sufficient condition, in terms of *grades of the determinantal ideals of the matrix $A = (aji),$ for the ideal $(a_1,\dots, a_n)$ to be a *complete intersection of *grade $n$ in $R[Y_1,\dots,Y_m].$


Vol. 15 (2014), No. 1, pp. 19-25
DOI: https://doi.org/10.18514/MMN.2014.582


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