Sur des invariants géométriques associés aux automorphismes du plan affine
英文摘要：
We associate to each automorphism of the plane, a geometric construction with some properties, it is the {\it{canonical resolution}}. We study the geometry of the canonical resolution, we deduce from it an upper bound for a geometric invariant (the ample index) linked to an automorphism of the affine plane and we link the structure of the effective cone of the surface we get to values of another geometric invariant (the effective index).
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
