Radiative stability of neutrino-mass textures
  Neutrino-mass textures proposed at high-scales are known to be unstable against radiative corrections especially for nearly degenerate eigen values. Within the renormalization group constraints we find a mechanism in a class of gauge theories which guarantees reproduction of any high-scale texture at low energies with radiative stability. We also show how the mechanism explains solar and atmospheric neutrino anomalies through the bimaximal texture at high scale. 
M. K. Parida, C. R. Das (North-Eastern Hill Univ.), G. Rajasekaran   (Institute of Mathematical Sciences, India)