TY - JOUR AU - Cruz Dombriz, Álvaro de la AU - Dobado González, Antonio AU - López Maroto, Antonio PY - 2008 DO - 10.1103/PhysRevD.77.123515 SN - 1550-7998 UR - https://hdl.handle.net/20.500.14352/50653 T2 - Physical Review D AB - In the context of f(R) theories of gravity, we study the evolution of scalar cosmological perturbations in the metric formalism. Using a completely general procedure, we find the exact fourth-order differential equation for the matter density... LA - eng PB - American Physical Society KW - Cosmological Perturbations KW - Accelerating Universe KW - Dark Energy KW - Supernovae KW - Constant TI - Evolution of density perturbations in f(R) theories of gravity TY - journal article VL - 77 ER -