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JOURNALS // Theory of Stochastic Processes // Archive

Theory Stoch. Process., 2017 Volume 22(38), Issue 2, Pages 69–78 (Mi thsp181)

On the solution of stochastic functional differential equations via memory gap

Flavia Sancier, Salah Mohammed

Sciences Division, Antioch College, 1 Morgan Place, Yellow Springs, OH 45387, USA

Abstract: We present an alternative proof for the existence of solutions of stochastic functional differential equations satisfying a global Lipschitz condition. The proof is based on an approximation scheme in which the continuous path dependence does not go up to the present: there is a memory gap. Strong convergence is obtained by closing the gap. Such approximation is particularly useful when extending stochastic models with discrete delay to models with continuous full finite memory.

Keywords: Stochastic functional differential equations, existence of solutions, approximation scheme, memory, delay.

MSC: 34K50, 60H99, 60H35

Language: English



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