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math.NA2007
Truncated decompositions and filtering methods with Reflective/Anti-Reflective boundary conditions: a comparison
Cristina Tablino Possio
The paper analyzes and compares some spectral filtering methods as truncated singular/eigen-value decompositions and Tikhonov/Re-blurring regularizations in the case of the recentl…
math.NA2007★ 2 cited
V-cycle optimal convergence for DCT-III matrices
C. Tablino Possio
The paper analyzes a two-grid and a multigrid method for matrices belonging to the DCT-III algebra and generated by a polynomial symbol. The aim is to prove that the convergence ra…