Details
| Original language | English |
|---|---|
| Publication status | E-pub ahead of print - 8 May 2023 |
Abstract
Keywords
- math.AG, 14H10, 32G20
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2023.
Research output: Working paper/Preprint › Preprint
}
TY - UNPB
T1 - Rigidity of modular morphisms via Fujita decomposition
AU - Codogni, Giulio
AU - González-Alonso, Víctor
AU - Torelli, Sara
PY - 2023/5/8
Y1 - 2023/5/8
N2 - In this note we prove that the Torelli, Prym and Spin-Torelli morphisms, as well as covering maps between moduli stacks of projective curves can not be deformed. The proofs use properties of the Fujita decomposition of the Hodge bundle of families of curves.
AB - In this note we prove that the Torelli, Prym and Spin-Torelli morphisms, as well as covering maps between moduli stacks of projective curves can not be deformed. The proofs use properties of the Fujita decomposition of the Hodge bundle of families of curves.
KW - math.AG
KW - 14H10, 32G20
M3 - Preprint
BT - Rigidity of modular morphisms via Fujita decomposition
ER -