"Covariant and noncovariant gauge transformations for the conformal 
particle"

A gauge-invariant conformal particle model is studied.  Its lagrangian 
gauge transformations are obtained in a covariant way using a kind of 
canonical generator.  On the other hand, the hamiltonian transformations 
can not be written in a covariant form despite the covariance of the 
hamiltonian constraints.