Rate of convergence for numerical solutions to SFDEs with jumps

Details Rate of convergence for numerical solutions to SFDEs with jumps Rate of convergence for numerical solutions to SFDEs with jumps

2009-06-18

arxiv.org/abs/0906.3455v1

Mathematics

Probability

17 pages

Scientific paper

In this paper, we are interested in the numerical solutions of stochastic functional differential equations (SFDEs) with {\it jumps}. Under the global Lipschitz condition, we show that the $p$th moment convergence of the Euler-Maruyama (EM) numerical solutions to SFDEs with jumps has order $1/p$ for any $p\ge 2$. This is significantly different from the case of SFDEs without jumps where the order is 1/2 for any $p\ge 2$. It is therefore best to use the mean-square convergence for SFDEs with jumps. Consequently, under the local Lipschitz condition, we reveal that the order of the mean-square convergence is close to 1/2, provided that the local Lipschitz constants, valid on balls of radius $j$, do not grow faster than $\log j$.

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