Using the renormalization group approach, the Coulomb gas and the coset techniques, the effect of slightly relevant perturbations is studied for the second parafermionic field theory with the symmetry ZN , for N odd. New fixed points are found and classified. ∗ Unité Mixte de Recherche UMR 7589 Parafermionic conformal field theories describe systems enjoying conformal symmetry and a cyclic symm...

We study the effect of nuclear reaction on a thin, axisymmetric, differentially rotating, inviscid, steady accretion flow around a black hole from an analytical point of view. We find that for most of the reasonable disk parameters, when p − p-reaction, dissociation of deuterium and helium are taken into account, the transonic region of the disk continues to have the inner sonic point and if th...