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内容説明 This book constitutes the thoroughly refereed post-conference proceedings of the 7th International Conference on Large-Scale Scientific Computations， LSSC 2009， held in Sozopol， Bulgaria， in June 2009. The 93 revised full papers presented together with 5 plenary and invited papers were carefully reviewed and selected from numerous submissions for inclusion in the book. The papers are organized in topical sections on multilevel and multiscale preconditioning methods multilevel and multiscale methods for industrial applications， environmental modeling， control and uncertain systems， application of metaheuristics to large scale problems， monte carlo: methods， applications， distributed computing， grid and scientific and engineering applications， reliable numerical methods for differential equations， novel applications of optimization ideas to the numerical Solution of PDEs， and contributed talks.