. "Blaheta, Radim" . . . "281033" . "Preconditioning of matrices partitioned in 2 x 2 block form: Eigenvalue estimates and Schwarz DD for mixed FEM"@en . "2"^^ . "Numerical Linear Algebra with Applications" . "000283388500005" . "Preconditioning of matrices partitioned in 2 x 2 block form: Eigenvalue estimates and Schwarz DD for mixed FEM" . . "2"^^ . "17" . "iterative solution methods; saddle point problems; preconditioning block matrices; domain decomposition; heterogeneous problems; regularization"@en . . "5" . . . "A general framework for constructing preconditioners for 2 x 2 block matrices is presented, and eigenvalue bounds of the preconditioned matrices are derived The results are applied both for positive-definite problems and for saddle point matrices of regularized forms. Eigenvalues and minimal polynomials for certain limit cases are derived A domain decomposition method, with overlap, is used to solve the pivot block of the regularized matrix. Special attention is paid to problems with heterogeneous coefficients Copyright (C) 2010 John Wiley & Sons, Ltd."@en . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . "[E72AD6613537]" . . "A general framework for constructing preconditioners for 2 x 2 block matrices is presented, and eigenvalue bounds of the preconditioned matrices are derived The results are applied both for positive-definite problems and for saddle point matrices of regularized forms. Eigenvalues and minimal polynomials for certain limit cases are derived A domain decomposition method, with overlap, is used to solve the pivot block of the regularized matrix. Special attention is paid to problems with heterogeneous coefficients Copyright (C) 2010 John Wiley & Sons, Ltd." . "RIV/68145535:_____/10:00350871" . "Preconditioning of matrices partitioned in 2 x 2 block form: Eigenvalue estimates and Schwarz DD for mixed FEM" . . . . . "23"^^ . . . . . . . "1070-5325" . "Preconditioning of matrices partitioned in 2 x 2 block form: Eigenvalue estimates and Schwarz DD for mixed FEM"@en . "P(GA105/09/1830), Z(AV0Z30860518)" . "Axelsson, Owe" . "RIV/68145535:_____/10:00350871!RIV11-GA0-68145535" . . "Axelsson, Owe" . .