WebJun 1, 2011 · We propose a BTTB preconditioner to speed up the PCG method and prove that the BTTB preconditioner is a good preconditioner. We then discuss the construction of the BTTB preconditioner.... WebMay 1, 2016 · Preconditioning techniques for an image deblurring problem, Numerical Linear Algebra With Applications 10.1002/nla.2040 DeepDyve DeepDyve Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team. Learn More → Preconditioning techniques for an image deblurring problem Chen, Ke; …
An Introduction to Iterative Toeplitz Solvers Appendix
WebMar 23, 2012 · The programs in A.8–A.19 are used for solving BTTB systems. To use them, run the main program A.8. The programs in A.9 and A.10 generate the first column and/or the first row of each block of BTTB matrices. The program in A.11 computes the eigenvalues of BCCB matrices. WebJan 4, 2001 · Block preconditioner with circulant blocks (BPCB) has been used for solving linear systems with block Toeplitz structure since 1992 [R. Chan, X. Jin, A family of … johnson city ny dmv
BTTB preconditioners for BTTB systems Request PDF
WebDec 3, 2011 · In this paper, we consider solving the BTTB system ${\cal T}_{m,n}[f] {\bf{x}} = {\bf{b}}$ by the preconditioned conjugate gradient (PCG) method, where ${\cal … WebJan 4, 2001 · In this paper, we propose new preconditioners for block systems based on circulant preconditioners. From level-1 circulant preconditioner we construct our first preconditioner q 1 (T m,n )... WebJun 1, 2011 · We propose a BTTB preconditioner to speed up the PCG method and prove that the BTTB preconditioner is a good preconditioner. We then discuss the … how to get weapons in bedwars