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Daily Overview |
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Num4: Numerical Mathematics and Scientific Computing Location: A703 Session Chair: Thomas Wick | |
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Multilevel Picard approximations for McKean--Vlasov stochastic differential equations with nonconstant diffusion 1: Nanyang Technological University, Singapore; 2: Universität Bielefeld, Germany; 3: ETH Zürich, Switzerland We introduce multilevel Picard (MLP) approximations for McKean--Vlasov stochastic differential equations (SDEs) with nonconstant diffusion coefficient. Under standard Lipschitz assumptions on the coefficients, we show that the MLP algorithm approximates the solution of the SDE in the $L^2$-sense without the curse of dimensionality. The latter means that its computational cost grows at most polynomially in both the dimension and the reciprocal of the prescribed error tolerance. In two numerical experiments, we demonstrate its applicability by approximating McKean--Vlasov SDEs in dimensions up to 1000. | |
