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Martingale representation in progressively enlarged Lévy filtrations
Stochastics ( IF 0.8 ) Pub Date : 2021-06-06 , DOI: 10.1080/17442508.2021.1935950 P. Di Tella 1 , H.-J. Engelbert 2
中文翻译:
逐渐扩大的 Lévy 过滤中的鞅表示
更新日期:2021-06-06
Stochastics ( IF 0.8 ) Pub Date : 2021-06-06 , DOI: 10.1080/17442508.2021.1935950 P. Di Tella 1 , H.-J. Engelbert 2
Affiliation
In this paper, we obtain a martingale representation theorem in the progressive enlargement by a random time τ of the filtration generated by a Lévy process. The assumptions on the random time are that is immersed in and that τ avoids stopping times. We also study the multiplicity of a progressively enlarged filtration.
中文翻译:
逐渐扩大的 Lévy 过滤中的鞅表示
在本文中,我们得到了渐进放大中的鞅表示定理 通过过滤的随机时间τ由 Lévy 过程生成。随机时间的假设是 沉浸在 并且τ避免停车时间。我们还研究了逐渐扩大的过滤的多样性。