Variability regions for certain families of harmonic univalent mappings
Variability regions for certain families of harmonic univalent mappings
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DOI:
10.1080/17476933.2010.551200
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发表时间:
2013-01
影响因子:
0.9
通讯作者:
S. Ponnusamy;H. Yamamoto;Hiroshi Yanagihara
中科院分区:
文献类型:
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作者:
S. Ponnusamy;H. Yamamoto;Hiroshi Yanagihara
Let 𝒜 be the class of analytic functions h in the unit disk 𝔻. Fix h ∈ 𝒜 with h(0) = h′(0) − 1 = 0 satisfying Re h′(z) > 0 in 𝔻. For b ∈ 𝔻, we consider the sets For fixed z 0 ∈ 𝔻 \ {0} and b ∈ 𝔻, we study in this article the regions of variabilities of the sets V 0(z 0, b) = {g(z 0) : g ∈ ℬ(h, b)} and V 1(z 0, b) = {g′(z 0) : g ∈ ℬ(h, b)}. The problem originated from the class of harmonic univalent mappings of the unit disk.