Dear all deal.ii users,
I am studying goal oriented adaptivity for FSI problems and code it
in deal.ii. The system consists of velocity, pressure, displacement(u,p,w),
so I use block sparsity matrix for system matrix. When I solve the dual
equation, I find what I need is a transpose matrix of system matrix, so how
should I do to get the transpose of block sparsity matrix?
I have tried to get transpose of every block using
transpose_operator, but I don't know how to combined these terms into a new
block sparsity matrix.
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