Brunetti, D.Graves, JonathanMariani, AlbertoCooper, Wilfred AnthonyWahlberg, CLazzaro, ENowak, S2019-03-112019-03-112019-03-11201810.1017/S002237781800020Xhttps://infoscience.epfl.ch/handle/20.500.14299/155474The problem of pressure driven infernal type perturbations near the plasma edge is addressed analytically for a circular limited tokamak configuration which presents an edge flattened safety factor. The plasma is separated from a metallic wall, either ideally conducting or resistive, by a vacuum region. The dispersion relation for such types of instabilities is derived and discussed for two classes of equilibrium profiles for pressure and mass density.text::journal::journal article::research article