parallelintime algorithm: MGRIT
Thepaperderivesandanalysesthe(semi-)discretedispersionrelationofthePararealparallel-in-timeintegrationmethod.ItinvestigatesParareal’swavepropagationcharacteristicswiththeaimtobetterunderstandwhatcausesthewelldocumentedstabilityproblemsforhyperbolicequations.Theanalysisshowsthattheinstability
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