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A CYCLIC EXTENSION OF THE EARTHQUAKE FLOW II

机译:地震流的循环扩展II

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The landslide flow, introduced in [5], is a smoother analog of the earthquake flow on Teichmuller space which shares some of its key properties. We show here that further properties of earthquakes apply to landslides. The landslide flow is the Hamiltonian flow of a convex function. The smooth grafting map sgr taking values in Teichmuller space, which is to landslides as grafting is to earthquakes, is proper and surjective with respect to either of its variables. The smooth grafting map SGr taking values in the space of complex projective structures is symplectic (up to a multiplicative constant). The composition of two landslides has a fixed point on Teichmuller space. As a consequence we obtain new results on constant Gauss curvature surfaces in 3-dimensional hyperbolic or AdS manifolds. We also show that the landslide flow has a satisfactory extension to the boundary of Teichmuller space.
机译:在[5]中引入的滑坡流是Teichmuller空间上地震流的一个更平滑的模拟,它具有一些关键特性。我们在这里表明地震的进一步性质适用于滑坡。滑坡流是凸函数的哈密顿流。在Teichmuller空间中获取值的平滑嫁接图sgr是适当的,并且对其中的任何变量都具有推测性,该值在滑坡与在地震中的嫁接一样是滑坡。光滑的嫁接图SGr在复杂的投影结构的空间中取值是辛的(直到乘法常数)。两个滑坡的组成在Teichmuller空间上具有固定点。结果,我们在三维双曲或AdS流形中的恒定高斯曲率曲面上获得了新的结​​果。我们还表明,滑坡流向Teichmuller空间边界具有令人满意的扩展。

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