Real-space renormalization-group approach to field evolution equations.
An operator formalism for the reduction of degrees of freedom in the evolution of discrete partial differential equations (PDE) via real-space renormalization group is introduced, in which cell overlapping is the key concept. Applications to (1+1)-dimensional PDEs are presented for linear and quadratic equations that are first order in time.
Degenhard
Andreas
A
The Institute of Cancer Research, Department of Physics, Downs Road, Sutton, Surrey SM2 5PT, United Kingdom. andreasd@icr.ac.uk
Rodríguez-Laguna
Javier
J