Abstract
We study the Morse–Novikov cohomology and its almost-symplectic counterpart on manifolds admitting locally conformally symplectic structures. More precisely, we introduce lcs cohomologies and we study elliptic Hodge theory, dualities, Hard Lefschetz condition. We consider solvmanifolds and Oeljeklaus–Toma manifolds. In particular, we prove that Oeljeklaus–Toma manifolds with precisely one complex place, and under an additional arithmetic condition, satisfy the Mostow property. This holds in particular for the Inoue surface of type \(S^0\).
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Acknowledgements
The authors would like to thank Giovanni Bazzoni, Liviu Ornea, Luis Ugarte, Victor Vuletescu, for interesting discussions. The first-named and the third-named authors would like to thank also Adriano Tomassini for his constant support and encouragement and for useful discussions. The second-named author is also grateful for constructive discussions to Andrei Sipoş and Miron Stanciu and would like to thank Liviu Ornea for his constant guidance. Part of this work has been done during the stay of the first-named author at Universitatea din Bucureşti with the support of an ICUB Fellowship: he would like to thank Liviu Ornea and Victor Vuletescu for the invitation, and the whole Department for the warm hospitality.
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Dedicated to Professor Paolo Piccinni on the occasion of his 65th birthday. Buon compleanno!
D. Angella is supported by the SIR2014 Project RBSI14DYEB “Analytic aspects in complex and hypercomplex geometry”, by ICUB Fellowship for Visiting Professor, and by GNSAGA of INdAM. N. Tardini is supported by Project PRIN “Varietà reali e complesse: geometria, topologia e analisi armonica” and by GNSAGA of INdAM.
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Angella, D., Otiman, A. & Tardini, N. Cohomologies of locally conformally symplectic manifolds and solvmanifolds. Ann Glob Anal Geom 53, 67–96 (2018). https://doi.org/10.1007/s10455-017-9568-y
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DOI: https://doi.org/10.1007/s10455-017-9568-y