Differential real-space renormalization of the two-dimensional gaussian model

Yoshitake Yamazaki, Henk J. Hilhorst, G�nther Meissner

Yoshitake Yamazaki, G�nther Meissner, Henk J. Hilhorst

H. J. Hilhorst, J. M. J. van Leeuwen

Fernando Dantas Nobre

Wim van Saarloos, J. M. J. van Leeuwen, Attilio L. Stella

H. J. Hilhorst, Michael Schick C, J. M. J. van Leeuwen

A new real-space renormalization method is developed which leads to differential renormalization-group equations. For a two-dimensional triangular Ising lattice these equations can be solved exactly and yield and exact critical properties.