Pierre Clavier (IRIMAS, UniversitÃ© de Haute Alsace)

2021/12/03, 13:15

Before the MATH+ Friday Colloquium by Prof. Marcos MariÃ±o (abstract, video recording)

Before the MATH+ Friday Colloquium by Prof. Marcos MariÃ±o (abstract, video recording)

Due to the current situation, the talk takes place **online**, via zoom. The meeting link has been sent out via the usual mailing lists; please contact the organisers if you have not received the email and would like to join the talk.

Resurgence theory was invented over four decades ago by J. Ecalle, but has recently been gaining a lot of interest, in particular because of its applications to Physics. In this introductory talk, I will start to explain why is resugence interesting for physicists, then move on to detail how trans-series arise and can be worked out within the resurgent framework. I will also mention some interesting properties of (accelero-)summation a la Ecalle when applied to quantum field theory.