2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17618In the present paper we utilize the renormalization group(RG) technique to analyse the Ising critical behavior in the double frequency sine-Gordon model. The one-loop RG equations obtained show unambiguously that there exist two Ising critical points besides the trivial Gaussian fixed point. The topology of the RG flows is obtained as well.6 pages, 1 figureStrongly Correlated ElectronsHigh Energy Physics - Phenomenologytext