Mathematical Research Letters
Volume 14, Issue 1, January 2007 pp. 129-136.
On the multiplication map of a multigraded algebraAuthors: Ivan V. Arzhantsev (1) and Jürgen Hausen (2)
Author institution: Moscow State Lomonosov University (1) and Universität Tübingen (2)
Summary: Given a multigraded algebra $A$, it is a natural question whether or not for two homogeneous components $A_u$ and $A_v$, the product $A_{nu}A_{nv}$ is the whole component $A_{nu+nv}$ for $n$ big enough. We give combinatorial and geometric answers to this question.
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