Single-material crack problem, Michael Hohn, Univ. of Utah.
The included files contain the matrices and rhs vectors arising in
two ways of discretizing a single-material crack problem.
The *coord files are in zero-indexed coordinate format (row, column, value);
the *vec files contain
-- the size N
-- the entries from first to last
The fd-* files come from a finite difference approximation;
the sinc-* files from a sinc-basis approximation.
Both use the same logarithmic grid.
The fd matrices are very sparse, and factor in a few seconds, so
they're not terribly interesting, but the sinc matrices are another matter...
Larger matrices available on demand :)
-- Michael Hohn, hohn :at the domain: math.utah.edu