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Renormalisation in regularity structures

Presenter
October 29, 2015
MSRI
Keywords:
  • renormalization group
  • stochastic PDE, stochastic heat equation
  • Brownian motion
  • regularization
  • Feynman diagrams
MSC:
  • 35R15
  • 37E20
  • 81T18
  • 60B15
  • 82B21
  • 60G60
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Abstract
We describe a general approach to the renormalisation step in the theory of regularity structures based on Hopf algebras of labelled trees (joint work with Yvain Bruned and Martin Hairer).
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