Abstract
For sequences of symplectic twist maps without conjugate points, an invariant Lagrangian subbundle is constructed. This allows one to deduce that absence of conjugate points is a rare property in some classes of maps.
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This work was partially supported by EPSRC grant GR/M11349.
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Bialy, M.L., MacKay, R.S. Symplectic twist maps without conjugate points. Isr. J. Math. 141, 235–247 (2004). https://doi.org/10.1007/BF02772221
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DOI: https://doi.org/10.1007/BF02772221