FM 09-2025, arXiv:

Authors : Giovanni Gallavotti

Title:: Phi4 hierarchical and euclidean

Abstract:

Phi4: hierarchical and Euclidean I will review the approach leading to ultraviolet stability in Phi4 (and Sine-Gordon or Ising) in dimensions two or three as a rigorous interpretation of the Wilsonian renrmalization group.

Keywords: renormalization group, hierarchical models, Euclidean scalare fields

Giovanni Gallavotti
INFN-Roma1 and Universit\`a "La Sapienza” Roma, Italy