** Next:** Algorithm
** Up:** V-filtration and spectral numbers
** Previous:** Microlocal structure

The * Hodge filtration* on
is defined by
.
The * singularity spectrum*
, defined
by

reflects the embedding of
in
and
satisfies the symmetry relation
.
Since
, this implies
or, equivalently,
for
or
.

*Christoph Lossen*

*2001-03-21*