183	1996	Johan Walden	johan@tdb.uu.se	Numerical Methods for Differential Equations with Singular Source Terms


			Abstract

We study differential equations with singular source terms. For
such equations classical convergence results do not apply, as 
these rely on the regularity of the solution and the source terms.
We study some elliptic and parabolic problems numerically and 
theoretically, and show that with the right approximation of the
singular source terms, full convergence order can be reached away 
from the singularities, whereas the convergence will be poor in a
vicinity of these.