当前位置: X-MOL 学术Arch. Math. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Weighted exponential inequality for differentially subordinate martingales
Archiv der Mathematik ( IF 0.6 ) Pub Date : 2021-04-11 , DOI: 10.1007/s00013-021-01600-5
Michał Brzozowski

The paper contains a study of weighted exponential inequalities for differentially subordinate martingales, under the assumption that the underlying weight satisfies Muckenhoupt’s condition \(A_{\infty }\). The proof exploits certain functions enjoying appropriate size conditions and concavity. The martingales are adapted, uniformly integrable, and càdlàg - we do not assume any path-continuity restrictions. Because of this generality, we need to handle jump parts of processes which forces us to construct a Bellman function satisfying a stronger condition than local concavity. As a corollary, we will establish some new weighted \(L^p\) estimates for differential subordinates of bounded martingales.



中文翻译:

下级mar的加权指数不等式

假设基础权重满足Muckenhoupt条件\(A _ {\ infty} \),则本文对差分从属mar的加权指数不等式进行了研究。证明利用享有适当大小条件和凹度的某些功能。适应性强,统一可整合性和可移动性-我们不假设任何路径连续性限制。由于这种通用性,我们需要处理过程的跳跃部分,这迫使我们构造满足比局部凹面更强条件的Bellman函数。作为推论,我们将为有限mar的差分下属建立一些新的加权\(L ^ p \)估计。

更新日期:2021-04-11
down
wechat
bug