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Published online by Cambridge University Press: 20 November 2018
Given a smooth projective curve $C$ of positive genus
$g$, Torelli's theorem asserts that the pair
$\left( J\left( C \right),\,{{W}^{g-1}} \right)$ determines
$C$. We show that the theorem is true with
${{W}^{g-1}}$ replaced by
${{W}^{d}}$ for each
$d$ in the range
$1\,\le \,d\,\le \,g\,-\,1$.