Abstract
We prove that the link of a complex normal surface singularity is an L-space if and only if the singularity is rational. This via a result of Hanselman et al. (Taut foliations on graph manifolds, 2015. arXiv:1508.0591), proving the conjecture of Boyer et al. (Math Ann 356(4):1213–1245, 2013), shows that a singularity link is not rational if and only if its fundamental group is left-orderable if and only if it admits a coorientable taut foliation.
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References
Artin, M.: Some numerical criteria for contractability of curves on algebraic surfaces. Am. J. Math. 84, 485–496 (1962)
Artin, M.: On isolated rational singularities of surfaces. Am. J. Math. 88, 129–136 (1966)
Boileau, M., Boyer, S.: Graph manifolds \({\mathbb{Z}}\)-homology 3-spheres and taut foliations. J. Topol. 8(2), 571–585 (1915)
Boyer, S., Rolfsen, D., Wiest, D.: Orderable 3-manifold groups. Ann. Inst. Fourier (Grenoble) 55(1), 243–288 (2005)
Brittenham, M.: Tautly foliated 3-manifolds with no \({\mathbb{R}}\)-covered foliations. In: Walczak, P., Conlon, L., Langevin, R., Tsuboi, T. (eds.) Foliations: Geometry and Dynamics (Warsaw 2000), pp. 213–224. World Scientific Publishing, River edge (2002)
Bowden, J.: Approximating \(C^0\)-foliations by contact structures. arXiv:1509.07709 (2015)
Boyer, S., Gordon, CMcA, Watson, L.: On L-spaces and left-orderable fundamental groups. Math. Ann. 356(4), 1213–1245 (2013)
Boyer, S., Clay, A.: Foliations, orders, representations, L-spaces and graph manifolds. arXiv:1401.7726 (2014)
Boyer, S., Clay, A.: Slope detections, foliations in graph manifolds, and L-spaces. arXiv:1510.02378 (2015)
Calegari, D., Walker, A.: Ziggurats and rotation numbers. J. Mod. Dyn. 5(4), 711–746 (2011)
Chowdhury, S.: Ziggurat fringes are self-similar. arXiv:1503.0422 (2015)
Clay, A., Lidman, T., Watson, L.: Graph manifolds, left-orderability and amalgamation. Algebr. Geom. Topol. 13(4), 2347–2368 (2013)
Eisenbud, D., Hirsch, U., Neumann, W.: Transverse foliations of Seifert bundles and self homeomorphisms of the circle. Comment. Math. Helv. 56, 638–660 (1981)
Gabai, D.: Foliations and genera of links. Topology 23, 381–394 (1982)
Gordenko, A.S.: Self-similarity of Jankins–Neumann ziggurat. arXiv:1503.0311 (2015)
Gordon, C., Lidman, T.: Taut foliations, left-orderability, and cyclic branched covers. Acta Math. Vietnam. 39, 599–635 (2014)
Grauert, H.: Über Modifikationen und exzeptionelle analytische Mengen. Math. Ann. 146, 331–368 (1962)
Grauert, H., Remmert, R.: Komplexe Räume. Math. Ann. 136, 245–318 (1958)
Hanselman, J., Rasmussen, J., Rasmussen, S.D., Watson, L.: Taut foliations on graph manifolds. arXiv:1508.0591 (2015)
Hu, Y.: Left-orderability and cyclic branched coverings. Algebr. Geom. Topol. 15, 399–413 (2015)
Jankins, M., Neumann, W.D.: Rotation numbers of products of circle homeomorphisms. Math. Ann. 271, 381–400 (1985)
Kazez, W.H., Roberts, R.: \(C^0\) approximations of foliations. arXiv:1509.08382 (2015)
Kollár, J., Mori, S.: Birational geometry of algebraic varieties, vol. 134. Cambridge University Press, Cambridge (1998)
Laufer, H.B.: On rational singularities. Am. J. Math. 94, 597–608 (1972)
Lisca, P., Matić, G.: Transverse contact structures on Seifert 3-manifolds. Algebr. Geom. Topol. 4, 1125–1144 (2004)
Mauro, M.: On lattice cohomology and left-orderability. arXiv:1308.1890 (2013)
Naimi, R.: Foliations transverse to fibers of Seifert manifolds. Comment. Math. Helv. 69(1), 155–162 (1994)
Némethi, A.: Five lectures on normal surface singularities; lectures delivered at the Summer School in Low dimensional topology, Budapest, Hungary 1998. Bolyai Soc. Math. Stud. 8, 269–351 (1999)
Némethi, A.: On the Ozsváth–Szabó invariant of negative definite plumbed 3-manifolds. Geom. Topol. 9, 991–1042 (2005)
Némethi, A.: Graded roots and singularities. Singularities in geometry and topology. World Scientific Publishing, Hackensack (2007)
Némethi, A.: Lattice cohomology of normal surface singularities. Publ. RIMS Kyoto Univ. 44, 507–543 (2008)
Némethi, A.: Two exact sequences for lattice cohomology. In: Proceedings of the conference to honor H. Moscovici’s 65th birthday, Contemporary Math, vol. 546, pp. 249–269. (2011)
Neumann, W.D.: A calculus for plumbing applied to the topology of complex surface singularities and degenerating complex curves. Trans. Am. Math. Soc. 268(2), 299–344 (1981)
Ozsváth, P.S., Szabó, Z.: On the Floer homology of plumbed three-manifolds. Geom. Topol. 7, 185–224 (2003)
Ozsváth, P.S., Szabó, Z.: Holomorphic discs and topological invariants for closed three-manifold. Ann. Math. 159, 1027–1158 (2004)
Ozsváth, P.S., Szabó, Z.: Holomorphic discs and three-manifold invariants: properties and applications. Ann. Math. 159, 1159–1245 (2004)
Ozsváth, P.S., Szabó, Z.: Holomorphic discs and genus bounds. Geom. Topol. 8, 311–334 (2004)
Ozsváth, P.S., Stipsicz, A.I., Szabó, Z.: A spectral sequence on lattice cohomology. Quantum Topol. 5(4), 487–521 (2014)
Pinkham, H.: Normal surface singularities with \({\mathbb{C}}^{*}\) action. Math. Ann. 227, 183–193 (1977)
Stein, K.: Analytische Zerlegungen komplexer Räume. Math. Ann. 132, 63–93 (1956)
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AN was partially supported by NKFIH Grant 112735 and ERC Adv. Grant LDTBud of A. Stipsicz at Rényi Institute of Math., Budapest.
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Némethi, A. Links of rational singularities, L-spaces and LO fundamental groups. Invent. math. 210, 69–83 (2017). https://doi.org/10.1007/s00222-017-0724-6
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DOI: https://doi.org/10.1007/s00222-017-0724-6