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ALMOST CLOSED 1-FORMS

Published online by Cambridge University Press:  13 August 2013

R. PANDHARIPANDE
Affiliation:
Department of Mathematics, ETH Zürich, Zurich, Switzerland e-mail: rahul@math.ethz.ch
R. P. THOMAS
Affiliation:
Department of Mathematics, Imperial College, London, SW7 2AZ, United Kingdom e-mail: richard.thomas@imperial.ac.uk
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Abstract

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We construct an algebraic almost closed 1-form with zero scheme not expressible (even locally) as the critical locus of a holomorphic function on a non-singular variety. The result answers a question of Behrend–Fantechi. We correct here an error in our paper (D. Maulik, R Pandharipande and R. P. Thomas, Curves on K3 surfaces and modular forms, J. Topol.3 (2010) 937–996. arXiv:1001.2719v3), where an incorrect construction with the same claimed properties was proposed.

Keywords

Type
Research Article
Copyright
Copyright © Glasgow Mathematical Journal Trust 2013 

References

REFERENCES

1.Behrend, K., Donaldson–Thomas invariants via microlocal geometry, Ann. Math. 170 (2009) 13071338. math.AG/0507523.Google Scholar
2.Behrend, K. and Fantechi, B., Symmetric obstruction theories and Hilbert schemes of points on threefolds, Algebra Number Theory 2 (2008) 313345. math.AG/0512556.Google Scholar
3.Brav, C., Bussi, V. and Joyce, D., A Darboux theorem for derived schemes with shifted symplectic structure, (2013) arXiv:1305.6302.Google Scholar
4.Matsumura, H., Commutative ring theory (Cambridge University Press, Cambridge, UK, 1989).Google Scholar
5.Maulik, D., Pandharipande, R and Thomas, R. P., Curves on K3 surfaces and modular forms, J. Topol. 3 (2010) 937996. arXiv:1001.2719v3.Google Scholar
6.Pantev, T., Toën, B., Vaquie, M. and Vezzosi, G., Quantization and derived moduli spaces I: shifted symplectic structures, arXiv:1111.3209.Google Scholar