Equidistribution of periodic points of some automorphisms on K3 surfaces

We say (W, \{ϕ_1,..., ϕ_t\}) is a polarizable dynamical system of several morphisms if ϕ_i are endomorphisms on a projective variety $W$ such that \bigotimes ϕ_i^*L is linearly equivalent to L^q} for some ample line bundle L on W and for some q>t. If q is a rational number, then we have the equidistribution of small points of given dynamical system because of Yuan's work. As its application, we can build a polarizable dynamical system of an automorphism and its inverse on $K3$ surface and show its periodic points are equidistributed.

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