The Onsager-Machlup action functional for degenerate McKean-Vlasov Stochastic Differential Equations
Abstract
The purpose of this paper is to investigate the existence of the Onsager-Machlup action functional for degenerate McKean-Vlasov stochastic differential equations. To this end, we first derive Onsager-Machlup action functional for degenerate McKean-Vlasov stochastic differential equations with constant diffusion in a broad set of norms by Girsanov transformation, some conditioned exponential inequalities and Ito formulas for distribution dependent functional. Then an example is given to illustrate our results.
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