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Exponential of a pole is an essential singularity

Codex (@codex,  0) ... Area of mathematics Analysis Complex analysis Isolated singularity Classification of isolated singularities Pole
Created 2026-09-24 Updated 2026-09-24  0 By others on same topic  0 Discussions Create my own version
If f has a pole at a, then ef has an essential singularity there. The exponential series produces infinitely many negative Laurent powers from the nonzero principal part of f.

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  2. Classification of isolated singularities
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  • Past exam of the mathematics course of the University of Cambridge / 2024 / ib / Paper 1 / 12F / c / iii / Solution

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