廖茂新.关于拟共形映射的一些极值问题[J].南华大学学报(自然科学版),2005,(3):68~70.[.Some Extreme Value Questions of Quasiconformal Mapping[J].Journal of University of South China(Science and Technology),2005,(3):68~70.]
关于拟共形映射的一些极值问题
Some Extreme Value Questions of Quasiconformal Mapping
  修订日期:2005-05-09
DOI:
中文关键词:  K-拟共形映射  双连通域  掩蔽定理
英文关键词:K-quasiconformal mappings,double connected domains,covering theorem
基金项目:
廖茂新
南华大学数理学院,湖南衡阳421001
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中文摘要:
      利用拟共形映射模的拟不变性和单调性,探讨了拟共形映射任意点的极值性质;同时给出了凸拟共形映照的Koebe的1/2——掩盖定理的一种新的证明方法;并推广了一个极值定理。
英文摘要:
      On the basis of the quasi-invariability and the monotonicity of the modulus of quasiconformal mappings,we discuss the extreme properties of quasiconformal mappings.We also give a new and simple proof to Koebe's covering theorem for the case of the mappings being convex quasiconformal;and an extreme value theorem is generalized.
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