A note on the Waring ranks of reducible cubic forms

arxiv: 1305.5394 · v3 · pith:3QB5E6KGnew · submitted 2013-05-23 · 🧮 math.AG · math.AC

Emanuele Ventura This is my paper

classification 🧮 math.AG math.AC

keywords cubicformsranksreduciblewaringlbracenoteprove

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Let $W_3(n)$ be the set of Waring ranks of reducible cubic forms in $n+1$ variables. We prove that $W_3(n)\subseteq \lbrace 1,..., 2n+1\rbrace$.

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