A class of spectral two-level preconditioners /
Carpentieri, Bruno.
Duff, Iain S.
Giraud, Luc.
Rutherford Appleton Laboratory.
Council for the Central Laboratory of the Research Councils (Great Britain)
Didcot : Rutherford Appleton Laboratory,
2002.
Title from cover.
"Council for the Central Laboratory of the Research Councils."