Vf. Kovalev et Dv. Shirkov, Functional self-similarity and renormalization group symmetry in mathematical physics, THEOR MATH, 121(1), 1999, pp. 1315-1332
The results from developing and applying the notions of functional self-sim
ilarity and the Bogoliubov renormalization group to boundary-value problems
in mathematical physics during the last decade are reviewed. The main achi
evement is the regular algorithm for finding renormalization group-type sym
metries using the contemporary theory of Lie groups of transformations.