Moderate deviation and central limit theorem for stochastic differential delay equations with polynomial growth
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Employing the weak convergence method, based on a variational representation for expected values of positive functionals of a Brownian motion, we investigate moderate deviation for a class of stochastic differential delay equations with small noises, where the coefficients are allowed to be highly nonlinear growth with respect to the variables. Moreover, we obtain the central limit theorem for stochastic differential delay equations which the coefficients are polynomial growth with respect to the delay variables.
KeywordsStochastic differential delay equation (SDDE) polynomial growth central limit theorem moderate deviation principle weak convergence
MSC60F05 60F10 60H10
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The authors are grateful to the anonymous referees for their valuable comments and corrections. This work was supported in part by the National Natural Science Foundation of China (Grant No. 11401592), the Natural Science Foundation of Hunan Province (No. 13JJ5043), and the Mathematics and Interdisciplinary Sciences Project of Central South University.
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