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Stochastic ordinary and partial differential equations generalize the concepts of ordinary and partial differential equations to the setting where the unknown is a stochastic process.

4 votes
Accepted

Integral of $M^\text{*} - M$ with respect to $M^\text{*}$ is zero for $M^\text{*}$ the runni...

The integral with regard do $\mathrm{d}M^*$ is a pathwise Stieltjès integral, so the question is an analysis problem. Let $f : \mathbb{R}_+ \to \mathbb{R}$ be any continuous function, $F$ its current …
Christophe Leuridan's user avatar
1 vote

Solution to SDE conditional on high maxima of driving Brownian motion

Partial answer First, an heuristic argument. When we condition by events with low probability, the main is given by behaviour the less improbable situation. Here we condition by $S_1 := \max_{0 \le s …
Christophe Leuridan's user avatar
0 votes
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Phase space Brownian bridge

I use capital letters for random variables and small letters for possible values. Let $W$ be a brownian motion, defined on the canonical space $\mathcal{C}(\mathbb{R}_+)$ endowed with the Wiener measu …
Christophe Leuridan's user avatar