A Lagrangian Klein bottle you can't squeeze

Evans, Jonny (2022) A Lagrangian Klein bottle you can't squeeze. Journal of Fixed Point Theory and Applications, 24 (2): 47. ISSN 1661-7738

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Abstract

Suppose you have a nonorientable Lagrangian surface L in a symplectic 4-manifold. How far can you deform the symplectic form before the smooth isotopy class of L contains no Lagrangians? I solve this question for a particular Lagrangian Klein bottle. I also discuss some related conjectures.