Abstract:
A conjecture of Miles Reid states that the relative canonical algebra for a pencil of curves of genus greater than one is always generated in degrees at most three (1-2-3 conjecture). We give some explicit counter-examples to the conjecture.
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Received: 10 December 1998/ Revised version: 15 April 1999
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Konno, K., Mendes Lopes, M. On a question of Miles Reid. manuscripta math. 100, 81–86 (1999). https://doi.org/10.1007/s002290050196
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DOI: https://doi.org/10.1007/s002290050196