Rigidity and gluing for Morse and Novikov complexes

Octav Cornea1, Andrew Ranicki2
1Department of Mathematics and Statistics, University of Montréal, Montréal, Canada
2School of Mathematics, University of Edinburgh, Edinburgh, UK

Tóm tắt

We obtain rigidity and gluing results for the Morse complex of a real-valued Morse function as well as for the Novikov complex of a circle-valued Morse function. A rigidity result is also proved for the Floer complex of a hamiltonian defined on a closed symplectic manifold (M,ω) with c 1|π2(M)=[ω]|π2(M)=0. The rigidity results for these complexes show that the complex of a fixed generic function/hamiltonian is a retract of the Morse (respectively Novikov or Floer) complex of any other sufficiently C 0 close generic function/hamiltonian. The gluing result is a type of Mayer-Vietoris formula for the Morse complex. It is used to express algebraically the Novikov complex up to isomorphism in terms of the Morse complex of a fundamental domain. Morse cobordisms are used to compare various Morse-type complexes without the need of bifurcation theory.

Tài liệu tham khảo

Abbondandolo, A., Majer, P.: Morse homology on Hilbert spaces. Commun. Pure Appl. Math. 54, 689–760 (2001) Cieliebak, K., Floer, A., Hofer, H.: Symplectic homology II: A general construction. Math. Z. 218, 103–122 (1995) Farber, M., Ranicki, A.A.: The Morse-Novikov theory of circle-valued functions and noncommutative localization. E-print http://arXiv.org/abs/math.DG/9812122, Proc. 1998 Moscow Conference for S.P. Novikov’s 60th Birthday. Proc. Steklov Inst. 225, 381–388 (1999) Floer, A., Hofer, H.: Coherent orientations for periodic orbit problems in symplectic geometry. Math. Z. 212, 13–38 (1993) Floer, A., Hofer, H.: Symplectic homology I: Open sets in ℂn. Math. Z. 215, 37–88 (1994) Floer, A., Hofer, H., Salamon, D.: Transversality in elliptic Morse theory for the symplectic action. Duke Math. J. 80, 251–292 (1996) Franks, J.: Morse-Smale flows and homotopy theory. Topology 18, 199–215 (1979) Hirsch, M.W.: Differential Topology. Grad. Texts Math. 33. Springer 1976 Hofer, H., Zehnder, E.: Symplectic Invariants and Hamiltonian Dynamics. Birkhäuser 1994 Hutchings, M.: Reidemeister torsion in generalized Morse theory. Forum Math. 14, 209–244 (2002). E-print http://arXiv.org/abs/math.DG/9907066 Hutchings, M., Lee, Y.-J.: Circle-valued Morse theory and Reidemeister torsion. Geom. Topol. 3, 369–396 (1999) Latour, F.: Existence de 1-formes fermées non singulières dans une classe de cohomologie de de Rham. Publ. Math., Inst. Hautes Études Sci. 80, 135–194 (1995) Laudenbach, F.: On the Thom-Smale complex. Astérisque 205, 219–233 (1992) Milnor, J.: Morse Theory. Ann. Math. Stud. 51. Princeton 1963 Novikov, S.P.: The hamiltonian formalism and a multi-valued analogue of Morse theory. Uspeki Mat. 37, 3–49 (1982). English tr. Russ. Math. Surv. 37, 1–56 (1982) Pajitnov, A.: C 0-generic properties of the boundary operators in the Novikov complex. E-print math.DG/9812157. A.M.S. Translations 197, 29–117 (1999) Ranicki, A.: The algebraic construction of the Novikov complex of a circle-valued Morse function. Math. Ann. 322, 745–785 (2002). E-print http://arXiv.org/abs/math.dg-ga/9903090 Salamon, D.: Lectures on Floer Homology. Symplectic Geometry and Topology, ed. by Y. Eliashberg, L. Traynor, IAS/Park City Mathematics series 7, 143–230 (1999) Salamon, D., Zehnder, E.: Morse theory for periodic solutions of Hamiltonian Systems and the Maslov index. Commun. Pure Appl. Math. 45, 1303–1360 (1992)