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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb., 2018 Volume 209, Number 9, Pages 19–34 (Mi sm8963)

This article is cited in 3 papers

Tropical limit of log-inflection points for planar curves

G. B. Mikhalkina, A. Renaudineaub

a Section de Mathématiques, Université de Genève, Switzerland
b Institut de Mathématiques de Toulouse, Université Paul Sabatier, France

Abstract: This paper describes the behaviour of log-inflection points (that is, points of inflection with respect to the parallelization of $(\mathbb{C} ^\times)^2$ given by the multiplicative group law) of curves in $(\mathbb{C}^\times)^2$ under passage to the tropical limit. Assuming that the limiting tropical curve is smooth, we show that log-inflection points accumulate by pairs at the midpoints of bounded edges of it.
Bibliography: 11 titles.

Keywords: logarithmic inflection points, tropical limit.

UDC: 512.772+514.752.2+517.576

MSC: Primary 14T05; Secondary 14H50

Received: 05.05.2017 and 06.12.2017

DOI: 10.4213/sm8963


 English version:
Sbornik: Mathematics, 2018, 209:9, 1273–1286

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© Steklov Math. Inst. of RAS, 2026