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arXiv 1810.03392math.AP
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散度型半线性偏微分方程的反射倒向随机微分方程和障碍问题

Reflected BSDEs and obstacle problem for semilinear PDEs in divergence form

Tomasz Klimsiak

摘要:

考虑带障碍物的散度型半线性抛物型方程的Cauchy问题。我们表明,在自然条件下的右手边的方程和温和的条件下的障碍物的问题有一个唯一的解决方案,我们提供了它的随机表示反映落后的随机微分方程。我们还证明了正则性和逼近结果的解决方案的问题。

英文摘要:

We consider the Cauchy problem for semilinear parabolic equation in divergence form with obstacle. We show that under natural conditions on the right-hand side of the equation and mild conditions on the obstacle the problem has a unique solution and we provide its stochastic representation in terms of reflected backward stochastic differential equations. We prove also regularity properties and approximation results for solutions of the problem.

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