Analysis and comparison of several component mode synthesis methods on one-dimensional domains

O SummaryComponent mode synthesis methods enable to compute the eigenpairs of a differential operator on a domain that can be subdivided in different subdomains on each of which the eigenpairs of the same operator are assumed to be partially known. Error estimates are given for several of these methods applied to second order elliptic operators on one-dimensional domains. They are partly tied to an argument which is called here “asymptotic hidden regularity” of eigenfunctions of an elliptic operator.

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