# American Institute of Mathematical Sciences

January  2014, 21: 1-7. doi: 10.3934/era.2014.21.1

## Unboundedness of the Lagrangian Hofer distance in the Euclidean ball

 1 Département de Mathématiques et Applications de l'École Normale Supérieure, 45 rue d'Ulm, F 75230 Paris cedex 05, France

Received  October 2013 Revised  November 2013 Published  January 2014

Let $\mathcal{L}$ denote the space of Lagrangians Hamiltonian isotopic to the standard Lagrangian in the unit ball in $\mathbb{R}^{2n}$. We prove that the Lagrangian Hofer distance on $\mathcal{L}$ is unbounded.
Citation: Sobhan Seyfaddini. Unboundedness of the Lagrangian Hofer distance in the Euclidean ball. Electronic Research Announcements, 2014, 21: 1-7. doi: 10.3934/era.2014.21.1
##### References:
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##### References:
 [1] P. Biran, M. Entov and L. Polterovich, Calabi quasimorphisms for the symplectic ball,, Commun. Contemp. Math., 6 (2004), 793. doi: 10.1142/S0219199704001525. Google Scholar [2] M. Entov and L. Polterovich, Calabi quasimorphism and quantum homology,, Int. Math. Res. Not., 2003 (2003), 1635. doi: 10.1155/S1073792803210011. Google Scholar [3] M. Entov and L. Polterovich, Quasi-states and symplectic intersections,, Comment. Math. Helv., 81 (2006), 75. doi: 10.4171/CMH/43. Google Scholar [4] M. Entov and L. Polterovich, Rigid subsets of symplectic manifolds,, Compos. Math., 145 (2009), 773. doi: 10.1112/S0010437X0900400X. Google Scholar [5] M. Entov, L. Polterovich and P. Py, On continuity of quasimorphisms for symplectic maps,, in Perspectives in Analysis, (2012), 169. doi: 10.1007/978-0-8176-8277-4_8. Google Scholar [6] V. Humilière, Hofer's distance on diameters and the Maslov index,, Int. Math. Res. Not. IMRN, 2012 (2012), 3415. doi: 10.1093/imrn/rnr150. Google Scholar [7] M. Khanevsky, Hofer's metric on the space of diameters,, J. Topol. Anal., 1 (2009), 407. doi: 10.1142/S1793525309000187. Google Scholar [8] R. Leclercq and F. Zapolsky, Spectral invariants for monotone Lagrangian submanifolds,, in preparation., (). Google Scholar [9] Y.-G. Oh, Construction of spectral invariants of Hamiltonian paths on closed symplectic manifolds,, in The breadth of symplectic and Poisson geometry, (2005), 525. doi: 10.1007/0-8176-4419-9_18. Google Scholar [10] M. Schwarz, On the action spectrum for closed symplectically aspherical manifolds,, Pacific J. Math., 193 (2000), 419. doi: 10.2140/pjm.2000.193.419. Google Scholar [11] S. Seyfaddini, Descent and $C^0$-rigidity of spectral invariants on monotone symplectic manifolds,, J. Topol. Anal., 4 (2012), 481. doi: 10.1142/S1793525312500215. Google Scholar [12] M. Usher, Submanifolds and the Hofer norm,, to appear in J. Eur. Math. Soc., (). Google Scholar [13] C. Viterbo, Symplectic topology as the geometry of generating functions,, Math. Ann., 292 (1992), 685. doi: 10.1007/BF01444643. Google Scholar [14] F. Zapolsky, On the Hofer geometry for weakly exact Lagrangian submanifolds,, J. Symplectic Geom., 11 (2013), 475. doi: 10.4310/JSG.2013.v11.n3.a7. Google Scholar
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