Abstract
We will simplify earlier proofs of Perelman’s collapsing theorem for 3-manifolds given by Shioya–Yamaguchi (J. Differ. Geom. 56:1–66, 2000; Math. Ann. 333: 131–155, 2005) and Morgan–Tian (arXiv:0809.4040v1 [math.DG], 2008). A version of Perelman’s collapsing theorem states: “Let \(\{M^{3}_{i}\}\) be a sequence of compact Riemannian 3-manifolds with curvature bounded from below by (−1) and \(\mathrm{diam}(M^{3}_{i})\ge c_{0}>0\) . Suppose that all unit metric balls in \(M^{3}_{i}\) have very small volume, at most v i →0 as i→∞, and suppose that either \(M^{3}_{i}\) is closed or has possibly convex incompressible toral boundary. Then \(M^{3}_{i}\) must be a graph manifold for sufficiently large i”. This result can be viewed as an extension of the implicit function theorem. Among other things, we apply Perelman’s critical point theory (i.e., multiple conic singularity theory and his fibration theory) to Alexandrov spaces to construct the desired local Seifert fibration structure on collapsed 3-manifolds.
The verification of Perelman’s collapsing theorem is the last step of Perelman’s proof of Thurston’s geometrization conjecture on the classification of 3-manifolds. A version of the geometrization conjecture asserts that any closed 3-manifold admits a piecewise locally homogeneous metric. Our proof of Perelman’s collapsing theorem is accessible to advanced graduate students and non-experts.
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Bessières, L., Besson, G., Boileau, M., Maillot, S., Porti, J.: Collapsing irreducible 3-manifolds with nontrivial fundamental group. Invent. Math. 179, 434–460 (2010)
Burago, D., Burago, Y., Ivanov, S.: A Course Metric Geometry. Graduate Studies in Mathematics, vol. 33. American Mathematical Society, Providence (2001). ISBN: 0-8218-2129-6, xiv+415 pp.
Burago, Y., Gromov, M., Perelman, G.: A.D. Aleksandrov spaces with curvatures bounded below. Usp. Mat. Nauk 47(2(284)), 3–51 (1992). Translation in Russian Math. Surv. 47(2), 1–58 (1992) (Russian)
Calabi, E., Cao, J.: Simple closed geodesics on convex surfaces. J. Differ. Geom. 36, 517–549 (1992)
Cao, H., Zhu, X.: A complete proof of the Poincaré and geometrization conjectures—application of the Hamilton–Perelman theory of the Ricci flow. Asian J. Math. 10(2), 165–492 (2006)
Cao, J., Cheeger, J., Rong, X.: Splittings and Cr-structures for manifolds with nonpositive sectional curvature. Invent. Math. 144(1), 139–167 (2001)
Cao, J., Cheeger, J., Rong, X.: Local splitting structures on nonpositively curved manifolds and semirigidity in dimension 3. Commun. Anal. Geom. 12(1–2), 389–415 (2004)
Cao, J., Dai, B., Mei, J.: An optimal extension of Perelman’s comparison theorem for quadrangles and its applications. In: Lee, Y., Lin, C.-S., Tsui, M.-P. (eds.) Recent Advances in Geometric Analysis. Advanced Lectures in Mathematics, vol. 11, pp. 39–59. Higher Educational Press and International Press (2009). ISBN: 978-7-04-027602-2, 229 pp.
Cheeger, J., Gromoll, D.: On the structure of complete manifolds of nonnegative curvature. Ann. Math. 96, 413–443 (1972)
Cheeger, J., Gromov, M.: Collapsing Riemannian manifolds while keeping their curvature bounded. I. J. Differ. Geom. 23(3), 309–346 (1986)
Cheeger, J., Gromov, M.: Collapsing Riemannian manifolds while keeping their curvature bounded. II. J. Differ. Geom. 32, 269–298 (1990)
Colding, T., Minicozzi, W. II: Estimates for the extinction time for the Ricci flow on certain 3-manifolds and a question of Perelman. J. Am. Math. Soc. 18(3), 561–569 (2005)
Colding, T., Minicozzi, W. II: Width and mean curvature flow. Geom. Topol. 12(5), 2517–2535 (2008)
Colding, T., Minicozzi, W. II: Width and finite extinction time of Ricci flow. Geom. Topol. 12(5), 2537–2586 (2008)
Gromov, M.: Curvature, diameter and Betti numbers. Comment. Math. Helv. 56(2), 179–195 (1981)
Grove, K.: Critical point theory for distance functions. Differential geometry. In: Riemannian Geometry, Los Angeles, CA, 1990. Proc. Sympos. Pure Math., vol. 54, pp. 357–385. Am. Math. Soc., Providence (1993). Part 3
Grove, K., Shiohama, K.: A generalized sphere theorem. Ann. Math. 106, 201–211 (1977)
Grove, K., Wilhelm, F.: Metric constraints on exotic spheres via Alexandrov geometry. J. Reine Angew. Math. 487, 201–217 (1997)
Hamilton, R.S.: Four-manifolds with positive curvature operator. J. Differ. Geom. 24(2), 153–179 (1986)
Hamilton, R.S.: Non-singular solutions of the Ricci flow on three-manifolds. Commun. Anal. Geom. 7(4), 695–729 (1999)
Kapovitch, V.: Regularity of limits of noncollapsing sequences of manifolds. Geom. Funct. Anal. 12(1), 121–137 (2002)
Kapovitch, V.: Restrictions on collapsing with a lower sectional curvature bound. Math. Z. 249(3), 519–539 (2005)
Kapovitch, V.: Perelman’s Stability Theorem. In: Surveys in Differential Geometry, volume 11, pp. 103–136. International Press, Somerville (2007). ISBN: 978-1-57146-117-9, xii+347 pp.
Kapovitch, V., Petrunin, A., Tuschmann, W.: Nilpotency, almost nonnegative curvature and gradient flow on Alexandrov spaces. Ann. Math. (to appear). arXiv:math/0506273v4 [math.DG]
Kleiner, B., Lott, J.: Notes on Perelman’s papers. Geom. Topol. 12, 2587–2855 (2008)
Kleiner, B., Lott, J.: Locally collapsed 3-manifolds (in preparation). arXiv:1005.5106v1
Morgan, J., Tian, G.: Ricci Flow and the Poincaré Conjecture. Clay Mathematics Monographs, vol. 3. Am. Math. Soc., Providence (2007), 521 pp.
Morgan, J., Tian, G.: Completion of the proof of the geometrization conjecture. arXiv:0809.4040v1 [math.DG]
Morgan, J., Tian, G.: Ricci flow and the geometrization conjecture (in preparation)
Perelman, G., A.D. Alexandrov’s spaces with curvatures bounded from below. II. Preprint
Perelman, G.: Elements of Morse theory on Aleksandrov spaces. Algebra Anal. 5(1), 232–241 (1993) Translation in St. Petersburg Math. J. 5(1), 205–213 (1994). (Russian. Russian summary)
Perelman, G.: Collapsing with no proper extremal subsets. In: Comparison Geometry, Berkeley, CA, 1993–1994. Math. Sci. Res. Inst. Publ., vol. 30, pp. 149–155. Cambridge Univ. Press, Cambridge (1997)
Perelman, G.: The entropy formula for the Ricci flow and its geometric applications. arXiv:math/0211159v1 [math.DG]
Perelman, G.: Ricci flow with surgery on three-manifolds. arXiv:math/0303109v1 [math.DG]
Perelman, G.: Finite extinction time for the solutions to the Ricci flow on certain three-manifolds. arXiv:math/0307245v1 [math.DG]
Perelman, G., Petrunin, A.: Extremal subsets in Aleksandrov spaces and the generalized Liberman theorem. Algebra Anal. 5(1), 242–256 (1993). Translation in St. Petersburg Math. J. 5(1), 215–227 (1994)
Petrunin, A.: Semiconcave functions in Alexandrov’s geometry. In: Surveys in Differential Geometry. Surv. Differ. Geom. vol. 11, pp. 137–201. International Press, Somerville (2007). ISBN: 978-1-57146-117-9, xii+347 pp.
Rong, X.: The limiting eta invariants of collapsed three-manifolds. J. Differ. Geom. 37(3), 535–568 (1993)
Shen, Z.: Complete manifolds with nonnegative Ricci curvature and large volume growth. Invent. Math. 125(3), 393–404 (1996)
Shioya, T.: Mass of rays in Alexandrov spaces of nonnegative curvature. Comment. Math. Helv. 69(2), 208–228 (1994)
Shioya, T., Yamaguchi, T.: Collasping three-manifolds under a lower curvature bound. J. Differ. Geom. 56, 1–66 (2000)
Shioya, T., Yamaguchi, T.: Volume collapsed three-manifolds with a lower curvature bound. Math. Ann. 333, 131–155 (2005)
Wu, H.: An elementary method in the study of non-negative curvature. Acta Math. 142, 57–78 (1979)
Yamaguchi, T.: Collapsing and essential covering. Preprint (2009)
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Communicated by Jiaping Wang.
In this version, we improve the exposition of our arguments in the earlier arXiv version. Among other things, we highlight the use of Perelman’s version of critical point theory for distance functions. The first author was supported in part by Nanjing University and an NSF grant.
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Cao, J., Ge, J. A Simple Proof of Perelman’s Collapsing Theorem for 3-manifolds. J Geom Anal 21, 807–869 (2011). https://doi.org/10.1007/s12220-010-9169-5
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DOI: https://doi.org/10.1007/s12220-010-9169-5
Keywords
- Collapsing
- Graph-manifolds
- Seifert fibered spaces
- Perelman’s critical point theory
- Generalized implicit function theorem