Multi-level adaptive solutions to boundary-value problemsAchi Brandt(Langley Research Center)Mathematics of ComputationJanuary 1, 197710.1090/s0025-5718-1977-0431719-xCited by 3,212SaveCiteExport RISWatch citationsRelated PapersMulti-Level Adaptive Solutions to Boundary-Value Problems|Mathematics of Computation|1977|455