Acta Mathematica Vietnamica
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On the Relation Type of Fiber Cone
A. V. Jayanthan , Ramakrishna Nanduripp. 535-544
Abstract
In this article we study the relation type of the fiber cone of certain special classes of ideals in Noetherian local rings. We show that in any Noetherian local ring, if deviation of $I$ is $1$, and $\mathrm{depth}(G(\mathcal F_L)) \geq \ell-1$, then the relation types of $\mathcal R(I)$ and $F_L(I)$ are equal. We also prove that for lexsegment ideals in $K[x,y]$, where $K$ is a field, the relation types of the fiber cone and the Rees algebra are equal.