#### Volume 5, issue 2 (2001)

 1 M Abreu, D McDuff, Topology of symplectomorphism groups of rational ruled surfaces, J. Amer. Math. Soc. 13 (2000) 971 MR1775741 2 M Bialy, L Polterovich, Geodesics of Hofer's metric on the group of Hamiltonian diffeomorphisms, Duke Math. J. 76 (1994) 273 MR1301192 3 M Entov, $K$–area, Hofer metric and geometry of conjugacy classes in Lie groups, Invent. Math. 146 (2001) 93 MR1859019 4 A Floer, Symplectic fixed points and holomorphic spheres, Comm. Math. Phys. 120 (1989) 575 MR987770 5 A Floer, H Hofer, D Salamon, Transversality in elliptic Morse theory for the symplectic action, Duke Math. J. 80 (1995) 251 MR1360618 6 M Gromov, Pseudoholomorphic curves in symplectic manifolds, Invent. Math. 82 (1985) 307 MR809718 7 H Hofer, Estimates for the energy of a symplectic map, Comment. Math. Helv. 68 (1993) 48 MR1201201 8 H Hofer, C Viterbo, The Weinstein conjecture in the presence of holomorphic spheres, Comm. Pure Appl. Math. 45 (1992) 583 MR1162367 9 H Hofer, E Zehnder, Symplectic invariants and Hamiltonian dynamics, Birkhäuser Advanced Texts: Basler Lehrbücher. [Birkhäuser Advanced Texts: Basel Textbooks], Birkhäuser Verlag (1994) MR1306732 10 F Lalonde, D McDuff, Hofer's $L^\infty$–geometry: energy and stability of Hamiltonian flows I, II, Invent. Math. 122 (1995) 1, 35 MR1354953 11 G Liu, G Tian, Weinstein conjecture and GW invariants, Commun. Contemp. Math. 2 (2000) 405 MR1806943 12 G Liu, G Tian, Floer homology and Arnold conjecture, J. Differential Geom. 49 (1998) 1 MR1642105 13 G Liu, G Tian, On the equivalence of multiplicative structures in Floer homology and quantum homology, Acta Math. Sin. $($Engl. Ser.$)$ 15 (1999) 53 MR1701133 14 G Lu, The Weinstein conjecture on some symplectic manifolds containing the holomorphic spheres, Kyushu J. Math. 52 (1998) 331 MR1645455 15 D McDuff, The virtual moduli cycle, from: "Northern California Symplectic Geometry Seminar", Amer. Math. Soc. Transl. Ser. 2 196, Amer. Math. Soc. (1999) 73 MR1736215 16 D McDuff, Quantum homology of fibrations over $S^2$, Internat. J. Math. 11 (2000) 665 MR1780735 17 D McDuff, D Salamon, Introduction to symplectic topology, Oxford Mathematical Monographs, The Clarendon Press Oxford University Press (1998) MR1698616 18 D McDuff, D Salamon, $J$–holomorphic curves and quantum cohomology, University Lecture Series 6, American Mathematical Society (1994) MR1286255 19 D McDuff, S Tolman, Topological properties of Hamiltonian circle actions, IMRP Int. Math. Res. Pap. (2006) 72826, 1 MR2210662 20 J Moser, Addendum to: “Periodic orbits near an equilibrium and a theorem by Alan Weinstein”, Comm. Pure Appl. Math. 31 (1978) 529 MR0467821 21 S Piunikhin, D Salamon, M Schwarz, Symplectic Floer–Donaldson theory and quantum cohomology, from: "Contact and symplectic geometry (Cambridge, 1994)", Publ. Newton Inst. 8, Cambridge Univ. Press (1996) 171 MR1432464 22 L Polterovich, Gromov's $K$–area and symplectic rigidity, Geom. Funct. Anal. 6 (1996) 726 MR1406671 23 L Polterovich, Hamiltonian loops and Arnold's principle, from: "Topics in singularity theory", Amer. Math. Soc. Transl. Ser. 2 180, Amer. Math. Soc. (1997) 181 MR1767123 24 L Polterovich, Symplectic aspects of the first eigenvalue, J. Reine Angew. Math. 502 (1998) 1 MR1647622 25 L Polterovich, The geometry of the group of symplectic diffeomorphisms, Lectures in Mathematics ETH Zürich, Birkhäuser Verlag (2001) MR1826128 26 D Salamon, E Zehnder, Morse theory for periodic solutions of Hamiltonian systems and the Maslov index, Comm. Pure Appl. Math. 45 (1992) 1303 MR1181727 27 M Schwarz, On the action spectrum for closed symplectically aspherical manifolds, Pacific J. Math. 193 (2000) 419 MR1755825 28 C L Siegel, J K Moser, Lectures on celestial mechanics, Die Grundlehren der mathematischen Wissenschaften 187, Springer (1971) MR0502448 29 K F Siburg, New minimal geodesics in the group of symplectic diffeomorphisms, Calc. Var. Partial Differential Equations 3 (1995) 299 MR1385290 30 J Slimowitz, PhD thesis, Stony Brook (1998) 31 I Ustilovsky, Conjugate points on geodesics of Hofer's metric, Differential Geom. Appl. 6 (1996) 327 MR1422339 32 A Weinstein, Normal modes for nonlinear Hamiltonian systems, Invent. Math. 20 (1973) 47 MR0328222