  The well-studied phenomenon of X-ray edge singularities is revisited using
the sea-boson approach that has recently been placed on a rigorous footing. We
are able to reproduce the well-known result namely, Mahan's power law
divergences. Unlike the work of Schotte and Schotte, no linearization of the
bare fermion dispersion is needed, which, by their own admission, is a source
of some difficulty. Our approach also brings out some differences between the
different dimensions which is not present in their work. Finally, our work also
allows for easy generalization to potentials more realistic than the simple
delta-function used commonly in the literature.
