Index of /research/sparse/mat/Hohn

 Name                    Last modified       Size  Description

 Parent Directory        02-Nov-2009 14:42      -  
 fd12.mat                06-Sep-2008 05:11    77k  
 fd15.mat                06-Sep-2008 05:11   120k  
 fd18.mat                06-Sep-2008 05:11   172k  
 sinc12.mat              06-Sep-2008 05:11   882k  
 sinc15.mat              06-Sep-2008 05:11   1.8M  
 sinc18.mat              06-Sep-2008 05:11   3.4M  

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