New band toeplitz preconditioners for ill-conditioned symmetric positive definite Toeplitz systemsNOUTSOS, D; VASSALOS, P.SIAM journal on matrix analysis and applications. 2002, Vol 23, Num 3, pp 728-743, issn 0895-4798Article

Band plus algebra preconditioners for two-level Toeplitz systemsNOUTSOS, D; VASSALOS, P.BIT (Nordisk Tidskrift for Informationsbehandling). 2011, Vol 51, Num 3, pp 695-719, issn 0006-3835, 25 p.Article

Block band Toeplitz preconditioners derived from generating function approximations : analysis and applicationsNOUTSOS, D; SERRA CAPIZZANO, S; VASSALOS, P et al.Numerische Mathematik. 2006, Vol 104, Num 3, pp 339-376, issn 0029-599X, 38 p.Article

Two-level toeplitz preconditioning : Approximation results for matrices and functionsNOUTSOS, D; SERRA CAPIZZANO, S; VASSALOS, P et al.SIAM journal on scientific computing (Print). 2007, Vol 28, Num 2, pp 439-458, issn 1064-8275, 20 p.Article

Asymptotic behavior of the condition number of two-level Toeplitz matrix sequencesNOUTSOS, D; SERRA CAPIZZANO, S; VASSALOS, P et al.Linear algebra and its applications. 2005, Vol 395, pp 121-140, issn 0024-3795, 20 p.Article

The conditioning of FD matrix sequences coming from semi-elliptic differential equationsNOUTSOS, D; SERRA CAPIZZANO, S; VASSALOS, P et al.Linear algebra and its applications. 2008, Vol 428, Num 2-3, pp 600-624, issn 0024-3795, 25 p.Conference Paper

Matrix algebra preconditioners for multilevel Toeplitz systems do not insure optimal convergence rateNOUTSOS, D; CAPIZZANO, S. Serra; VASSALOS, P et al.Theoretical computer science. 2004, Vol 315, Num 2-3, pp 557-579, issn 0304-3975, 23 p.Article

Measurement of effecftive alveolar carbon dioxide tension during spontaneous breathing in normal subjects and patients with chronic airways obstructionJORDANOGLOU, J; KOULOURIS, N; KYROUSSIS, D et al.Thorax. 1995, Vol 50, Num 3, pp 240-244, issn 0040-6376Article