  The familiar trace identity associated with the scale transformation xxxx on
the Lagrangian density for a noninteracting massive real scalar field in 2 + 1
dimensions is shown to be violated on a single plate on which the Dirichlet
boundary condition xxxx is imposed.It is however respected in : i. 1 + 1
dimensions in both free space and on a single plate on which the Dirichlet
boundary condition xxxx holds; and, ii. in 2 + 1 dimensions in free space, i.e.
the unconstrained configuration.On the plate where xxxx, the modified trace
identity is shown to be anomalous with a numerical coefficient for the
anomalous term equal to the canonical scale dimension viz.1/2. The technique of
Bordag,Robaschik and Wieczorek [5] is used to incorporate the said boundary
condition into the generating functional for the connected Green's functions.
  Note: The xxxx in the abstract above refer to symbols that are available in
the abstract of the paper.
