[petsc-users] question about LU decomposition of a conjugated matrix

[Michael Povolotskyi]

Dear developers of Petsc and users,
I have the following numerical problem.

I need to solve the system Ax = B, where A is a square matrix, x and B 
are rectangular matrix
The system is solved by doing LU decomposition.

In the next step I need to solve a system A'y = C, where A' is a complex 
conjugate of A.
My question: is it possible to reuse the LU decomposition of A for doing 
this?
Thank you,
Michael.

-- 
Michael Povolotskyi, PhD
Research Assistant Professor
Network for Computational Nanotechnology
207 S Martin Jischke Drive
Purdue University, DLR, room 441-10
West Lafayette, Indiana 47907

phone: +1-765-494-9396
fax: +1-765-496-6026