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arXiv 1502.04216math.CV
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有理$Γ$ -内函数的代数和几何性质

Algebraic and geometric aspects of rational $Γ$-inner functions

Jim Agler, Zinaida A. Lykova, Nicholas J. Young

摘要:

集合\[ Γ{\stackrel{\rm def}{=}} \{(z+w,zw):|z|\leq 1,|w|\leq 1\} \subset {\mathbb{C}}^2 \]具有有趣的复几何性质;它有一个3参数的自同构自同构群,它的特殊边界是一个直纹曲面同胚的默比乌斯带,它有一个特殊的子簇,这是唯一的复测地线是不变的所有自同构。我们利用这种几何发展一个明确的和详细的结构理论的合理的映射从单位盘到$Γ$,映射盘的边界到$Γ$的区别边界。

英文摘要:

The set \[ Γ{\stackrel{\rm def}{=}} \{(z+w,zw):|z|\leq 1,|w|\leq 1\} \subset {\mathbb{C}}^2 \] has intriguing complex-geometric properties; it has a 3-parameter group of automorphisms, its distinguished boundary is a ruled surface homeomorphic to the Möbius band and it has a special subvariety which is the only complex geodesic that is invariant under all automorphisms. We exploit this geometry to develop an explicit and detailed structure theory for the rational maps from the unit disc to $Γ$ that map the boundary of the disc to the distinguished boundary of $Γ$.

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。

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