A multiderivative multistep method uses higher time derivatives as well as values and first derivatives from several time levels. For an autonomous ordinary differential equation , the second time derivative is by the chain rule. Its local truncation error must include the higher-derivative terms. Consequently the usual second-order barrier for A-stable linear multistep methods, which only use first derivatives, does not apply.
For a fixed-step multiderivative multistep method, the ordinary zero-stability root condition still controls propagation of the starting errors when all derivative evaluation maps are uniformly Lipschitz continuous on the relevant bounded region. A local defect then yields global error over a fixed time interval, provided the starting errors are and the implicit updates use the nearby solution branch.
For example, writing the numerical error equation as , with uniformly Lipschitz continuous, a bounded impulse response for the root condition for a multistep method givesAbsorbing the last current-step term for small and applying the discrete Gronwall inequality gives the stated order. The higher derivatives enter through , whose bound stays uniform as .
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