Combinatorial Hopf Algebras and Mould Calculus

Time-orderings

speaker: Fréderic Patras (Laboratoire J.A.Dieudonné UMR CNRS-UNS N°7351 Université de Nice Sophia-Antipolis)

abstract: Time-ordered products solve linear differential equations but do not commute with time derivatives. This causes various problems, e.g. in statistical physics. Another notion of time-ordering (T-star products) has been deviced to cope with the issue, we will explain how to account for it in the framework of RB algebras. Based on j.w. with M. Bauer, R. Chetrite and K. Ebrahimi-Fard

timetable:
Fri 12 Apr, 9:30 - 10:30, Sala Conferenze Centro De Giorgi
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