A Short Proof of the Lemma of the Logarithmic Derivative in Several Complex Variables

Abstract In this work, we provide a concise proof of the logarithmic derivative lemma in $${\textbf{C}}^n$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>C</mml:mi> </mml:mrow> <mml:mi>n</mml:mi> </mml:msup> </mml:math> . We start by giving a complete proof of a critical result by Biancofiore and Stoll (Ann. of Math. Stud., No. 100, 29–45, 1981) via matrix theory, which is central to this area of study. Then, we follow Li (Trans. Amer. Math. Soc. 363, 6257–6267, 2011) and Ye (Math. Z. 222, 81–95, 1996) to present the shortest proof to date.

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Publication Details

Journal
Complex Analysis and Operator Theory
Published
2025-05-28
DOI
https://doi.org/10.1007/s11785-025-01701-x
Citations
1
Primary Topic
Meromorphic and Entire Functions
Type
article
Field-Weighted Citation Impact
3.73
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article

A Short Proof of the Lemma of the Logarithmic Derivative in Several Complex Variables

Qi Han, Jingbo Liu
1 citations
Complex Analysis and Operator Theory
Meromorphic and Entire Functions
3.73
article

A Short Proof of the Lemma of the Logarithmic Derivative in Several Complex Variables

Qi Han, Jingbo Liu
article en
1 citations

Abstract

Abstract In this work, we provide a concise proof of the logarithmic derivative lemma in $${\textbf{C}}^n$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>C</mml:mi> </mml:mrow> <mml:mi>n</mml:mi> </mml:msup> </mml:math> . We start by giving a complete proof of a critical result by Biancofiore and Stoll (Ann. of Math. Stud., No. 100, 29–45, 1981) via matrix theory, which is central to this area of study. Then, we follow Li (Trans. Amer. Math. Soc. 363, 6257–6267, 2011) and Ye (Math. Z. 222, 81–95, 1996) to present the shortest proof to date.

Complex Analysis and Operator TheoryVol. 19(5)
Texas A&M University – San Antonio (US)
Openalex Percentile: Top 10%
Meromorphic and Entire Functions
3.73
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