On the dynamical symmetric algebra of ageing: Lie structure,   representations and Appell systems
  The study of ageing phenomena leads to the investigation of a maximal parabolic subalgebra of conf_3 which we call alt. We investigate its Lie structure, prove some results concerning its representations and characterize the related Appell systems. 
Malte Henkel, Rene Schott, Stoimen Stoimenov, Jeremie Unterberger