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Mathematics of Computation
Mathematics of Computation
ISSN 1088-6842(online) ISSN 0025-5718(print)


On the discretization in time of semilinear parabolic equations with nonsmooth initial data

Authors: Michel Crouzeix and Vidar Thomée
Journal: Math. Comp. 49 (1987), 359-377
MSC: Primary 65M10
MathSciNet review: 906176
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Abstract: Single-step discretization methods are considered for equations of the form $ {u_t} + Au = f(t,u)$, where A is a linear positive definite operator in a Hilbert space H. It is shown that if the method is consistent with the differential equation then the convergence is essentially of first order in the stepsize, even if the initial data v are only in H, but also that, in contrast to the situation in the linear homogeneous case, higher-order convergence is not possible in general without further assumptions on v.

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PII: S 0025-5718(1987)0906176-3
Article copyright: © Copyright 1987 American Mathematical Society

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