* corresponding ``.templates.h'' file and instantiate the respective
* class yourself.
*
- * @author Ralf Hartmann, 1999
+ * @author Ralf Hartmann, Guido Kanschat, 1999, 2000
*/
template<typename number, typename inverse_type = number>
class PreconditionBlock
/**
* Block Jacobi preconditioning.
+ * See @ref{PreconditionBlock} for requirements on the matrix.
+ * @author Ralf Hartmann, Guido Kanschat, 1999, 2000
*/
template<typename number, typename inverse_type = number>
class PreconditionBlockJacobi : public Subscriptor,
* The diagonal blocks and the elements
* (of arbitray structure) below the diagonal blocks are used
* in the @p{operator ()} function of this class.
+ *
+ * See @ref{PreconditionBlock} for requirements on the matrix.
+ * @author Ralf Hartmann, Guido Kanschat, 1999, 2000
*/
template<typename number, typename inverse_type = number>
class PreconditionBlockSOR : public Subscriptor,