Mathematics of Computation, Vol. 37, No. 156 (Oct., 1981), pp. 475-494 (20 pages) Two conjectures are posed for the coefficients introduced by Alois Schett in the Taylor series expansion of the ...

We construct examples of elliptic operators for which the set of points where the reciprocal 1/g(x, ·) of the Green's function is not locally integrable in a dense set of points.