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Showing 1 to 1 of 1 for “"Lanczos iterations"”.
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High accuracy computational methods for the semiclassical Schrödinger equation
… to traditional approaches such as Magnus--Lanczos methods and Yoshida splittings based on traditional Magnus expansions that feature nested commutators of matrices. An analysis of these operatorial splittings and expansions is carried out by characterising the highly oscillatory behaviour …