On Lappan's five-valued theorem for φ-normal functions in several variables
DOI:
https://doi.org/10.37863/umzh.v74i9.6237Keywords:
Complex projective space, holomorphic mapping, normal functions, φ-normal functionAbstract
UDC 517.5
Let Um⊂Cm be а unit ball centered at the origin and let Pn be an n-dimensional complex projective space with the metric EPn. Also, let φ:[0,1)→(0,∞) be a smoothly increasing function. A holomorphic mapping f:Um→Pn is called {\it φ-normal} if (φ(‖ is bounded above for z\in\mathbb{U}^m and \xi\in\mathbb{C}^m such that \|\xi\|=1, where df(z) is the map from T_z\big(\mathbb{U}^m\big) to T_{f(z)}\big(\mathbb{P}^n\big) induced by f. For n=1, f is called a \varphi-normal function. We present an extension of Lappan's five-valued theorem to the class of \varphi-normal functions.
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