Paracontrolled distributions and singular PDEs
M Gubinelli, P Imkeller, N Perkowski - Forum of Mathematics, Pi, 2015 - cambridge.org
We introduce an approach to study certain singular partial differential equations (PDEs)
which is based on techniques from paradifferential calculus and on ideas from the theory of …
which is based on techniques from paradifferential calculus and on ideas from the theory of …
A regularity structure for rough volatility
A new paradigm has emerged recently in financial modeling: rough (stochastic) volatility.
First observed by Gatheral et al. in high‐frequency data, subsequently derived within market …
First observed by Gatheral et al. in high‐frequency data, subsequently derived within market …
Signature moments to characterize laws of stochastic processes
I Chevyrev, H Oberhauser - arXiv preprint arXiv:1810.10971, 2018 - arxiv.org
The sequence of moments of a vector-valued random variable can characterize its law. We
study the analogous problem for path-valued random variables, that is stochastic processes …
study the analogous problem for path-valued random variables, that is stochastic processes …
Characteristic functions of measures on geometric rough paths
I Chevyrev, T Lyons - 2016 - projecteuclid.org
We define a characteristic function for probability measures on the signatures of geometric
rough paths. We determine sufficient conditions under which a random variable is uniquely …
rough paths. We determine sufficient conditions under which a random variable is uniquely …
[图书][B] Rough volatility
Since we will never really know why the prices of financial assets move, we should at least
make a faithful model of how they move. This was the motivation of Bachelier in 1900, when …
make a faithful model of how they move. This was the motivation of Bachelier in 1900, when …
Signature moments to characterize laws of stochastic processes
I Chevyrev, H Oberhauser - Journal of Machine Learning Research, 2022 - jmlr.org
The sequence of moments of a vector-valued random variable can characterize its law. We
study the analogous problem for path-valued random variables, that is stochastic processes …
study the analogous problem for path-valued random variables, that is stochastic processes …
[HTML][HTML] Random dynamical systems, rough paths and rough flows
I Bailleul, S Riedel, M Scheutzow - Journal of Differential Equations, 2017 - Elsevier
We analyze common lifts of stochastic processes to rough paths/rough drivers-valued
processes and give sufficient conditions for the cocycle property to hold for these lifts. We …
processes and give sufficient conditions for the cocycle property to hold for these lifts. We …
[HTML][HTML] Malliavin calculus for regularity structures: the case of gPAM
Malliavin calculus is implemented in the context of Hairer (2014)[16]. This involves some
constructions of independent interest, notably an extension of the structure which …
constructions of independent interest, notably an extension of the structure which …
First-order Euler scheme for SDEs driven by fractional Brownian motions: the rough case
In this article, we consider the so-called modified Euler scheme for stochastic differential
equations (SDEs) driven by fractional Brownian motions (fBm) with Hurst parameter ⅓< H< …
equations (SDEs) driven by fractional Brownian motions (fBm) with Hurst parameter ⅓< H< …