One Conclusion on the Essential Singularity of Analytic Function

Lijiang ZENG

Abstract


In the article, the isolated singularity, removable singularity, zero, pole, essential singularity and other concepts and properties were used; Two lemmas on the isolated singularity were proved first, and to use these lemmas, one property of essential singularity was proved then.

Key words: Analytic function; Isolated singularity; Essential singularity; Laurent expansion


Keywords


Analytic function; Isolated singularity; Essential singularity; Laurent expansion

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DOI: http://dx.doi.org/10.3968%2Fj.pam.1925252820120302.1450

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