Lagrangian Bonnet pairs in complex space forms

In this paper we first give a Bonnet theorem for conformal Lagrangian surfaces in complex space forms, then we show that any compact Lagrangian surface in the complex space form admits at most one other global isometric Lagrangian surface with the same mean curvature form, unless the Maslov form is conformal. These two Lagrangian surfaces are then called Lagrangian Bonnet pairs. We also studied the question about Lagrangian Bonnet surfaces in $\tilde{M}^2(4c)$, and obtain some interesting results.

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