Abstract
An Abelian differential gives rise to a flat structure (translation surface) on the underlying Riemann surface. In some directions the directional flow on the flat surface may contain a periodic region that is made up of maximal cylinders filled by parallel geodesics of the same length. The growth rate of the number of such regions counted with weights, as a function of the length, is quadratic with a coefficient, called Siegel–Veech constant, that is shared by almost all translation surfaces in the ambient stratum. We evaluate various Siegel–Veech constants associated to the geometry of configurations of periodic cylinders and their area, and study extremal properties of such configurations in a fixed stratum and in all strata of a fixed genus.
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Acknowledgments
We would like to thank Anton Zorich for having initiated the present work. He asked most of the questions and initiated some answers. We thank Alex Wright for the formulation of the problem of Sect. 3.2, and for some comments on typos. We thank the anonymous referee(s) for the careful reading of the manuscript. Both authors thank ANR “GeoDyM” for financial support.
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Bauer, M., Goujard, E. Geometry of periodic regions on flat surfaces and associated Siegel–Veech constants. Geom Dedicata 174, 203–233 (2015). https://doi.org/10.1007/s10711-014-0014-z
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DOI: https://doi.org/10.1007/s10711-014-0014-z