Abstract
Let M be a complex surface. We show that there is a one-to-one correspondence between torsion-free affine connections on M and Riccati distributions on \(\mathbb {P}(TM)\). Furthermore, if M is compact, then this correspondence induces a one-to-one correspondence between affine structures on M and Riccati foliations on \(\mathbb {P}(TM)\). As applications of this result, we classify the regular k-webs on compact complex surfaces for \(k\ge 3\), and we also get a new proof of the classification of regular pencils of foliations on compact complex surfaces.
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Acknowledgements
The author wishes to express his deepest gratitude to Frank Loray for lots of fruitful discussions about the content of this paper, and also for reading the drafts and suggesting improvements. The author also wishes to thank Cesar Hilario for the suggestions and comments on the manuscript. The author acknowledge financial support from CAPES/COFECUB (Ma 932/19 ”Feuilletages holomorphes et intération avec la géométrie” / process number 88887.356980/2019-00). The author is grateful to the Institut de Recherche en Mathématique de Rennes, IRMAR and the Université de Rennes 1 for their hospitality and support. The author is supported by FAPERJ (Grant number E-26/010.001143/2019).
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Lizarbe, R. Affine connections on complex compact surfaces and Riccati distributions. manuscripta math. 172, 885–904 (2023). https://doi.org/10.1007/s00229-022-01435-6
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DOI: https://doi.org/10.1007/s00229-022-01435-6