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arXiv 1104.0740math.PR
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扰动Tanaka方程的解是路径唯一的

The solution of the perturbed Tanaka-equation is pathwise unique

Vilmos Prokaj

摘要:

田中方程$dX_t={\operatorname{sign}}(X_t)\,dB_t$是一个没有强解的随机微分方程的例子。因此,路径唯一性对这个方程不成立。本文证明了,如果我们用一个与布朗运动B无关的足够强的加性噪声来修正方程的右边,那么所得到的方程的解是路径唯一的.

英文摘要:

The Tanaka equation $dX_t={\operatorname{sign}}(X_t)\,dB_t$ is an example of a stochastic differential equation (SDE) without strong solution. Hence pathwise uniqueness does not hold for this equation. In this note we prove that if we modify the right-hand side of the equation, roughly speaking, with a strong enough additive noise, independent of the Brownian motion B, then the solution of the obtained equation is pathwise unique.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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