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Automorphic products of singular weight
- Part of
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- Journal:
- Compositio Mathematica / Volume 153 / Issue 9 / September 2017
- Published online by Cambridge University Press:
- 20 June 2017, pp. 1855-1892
- Print publication:
- September 2017
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- Article
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We prove some new structure results for automorphic products of singular weight. First, we give a simple characterisation of the Borcherds function
$\unicode[STIX]{x1D6F7}_{12}$. Second, we show that holomorphic automorphic products of singular weight on lattices of prime level exist only in small signatures and we derive an explicit bound. Finally, we give a complete classification of reflective automorphic products of singular weight on lattices of prime level.
