TY - JOUR
T1 - Convergence to Stable Limits for Ratios of Trimmed Levy Processes and their Jumps**
AU - Ipsen, Yuguang
AU - Kevei, P.
AU - Maller, Ross
PY - 2018
Y1 - 2018
N2 - We derive characteristic function identities for conditional distributions of an r-trimmed L\'evy process given its r largest jumps up to a designated time t. Assuming the underlying L\'evy process is in the domain of attraction of a stable process as Undefined control sequence \dto, these identities are applied to show joint convergence of the trimmed process divided by its large jumps to corresponding quantities constructed from a stable limiting process. This generalises related results in the 1-dimensional subordinator case developed in \cite{KeveiMason2014} and produces new discrete distributions on the infinite simplex in the limit. Keywords: L\'evy process; large jumps of L\'evy process; trimmed L\'evy process; stable process; trimmed subordinator; domain of attraction of stable laws; conditional distributions of L\'evy processes; small time convergence of L\'evy processes; generalised Poisson\tire Dirichlet laws
AB - We derive characteristic function identities for conditional distributions of an r-trimmed L\'evy process given its r largest jumps up to a designated time t. Assuming the underlying L\'evy process is in the domain of attraction of a stable process as Undefined control sequence \dto, these identities are applied to show joint convergence of the trimmed process divided by its large jumps to corresponding quantities constructed from a stable limiting process. This generalises related results in the 1-dimensional subordinator case developed in \cite{KeveiMason2014} and produces new discrete distributions on the infinite simplex in the limit. Keywords: L\'evy process; large jumps of L\'evy process; trimmed L\'evy process; stable process; trimmed subordinator; domain of attraction of stable laws; conditional distributions of L\'evy processes; small time convergence of L\'evy processes; generalised Poisson\tire Dirichlet laws
UR - http://real.mtak.hu/id/eprint/89243
U2 - 10.48550/arXiv.1708.08344
DO - 10.48550/arXiv.1708.08344
M3 - Article
VL - 24
SP - 539
EP - 562
JO - Markov Processes and Related Fields
JF - Markov Processes and Related Fields
IS - 4
ER -