Optimized algebraic interface conditions in domain decomposition methods for strongly heterogeneous unsymmetric problems
نویسندگان
چکیده
Under classical assumptions on the coefficients of the problem (e.g. η − 1 2divb > 0 a.e. in Ω) the matrix A in (2) is definite positive. We solve problem (2) by means of an Optimized Schwarz Method: such methods have been introduced at the continuous level in [4], and at the discrete level in [5]. We design optimized interface conditions directly at the algebraic level, in order to guarantee robustness with respect to heterogeneities in the coefficients.
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