7 mai 2025
Institut des Mathématiques d'Orsay
Fuseau horaire Europe/Paris

A leisurely walk through the resurgence landscape

7 mai 2025, 09:15
1h
2L8 (Institut des Mathématiques d'Orsay)

2L8

Institut des Mathématiques d'Orsay

Orateur

Jean Écalle (CNRS, emeritus)

Description

I shall attempt a broad brush, rather personal survey of resurgence (a theory now in its prime: it just turned 50 this year!) with special emphasis on
(i) the algebraic aspect, which all too often gets short shrift
(ii) questions of typology: sources of resurgence; patterns of resurgence; the ad
hoc toolkit
(iii) some signal successes of the theory
(iv) and lastly, for good measure, three vexing open questions.

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