A generalization of the rational rough Heston approximation

Autor: Gatheral, Jim, Radoičić, Radoš
Rok vydání: 2023
Předmět:
Zdroj: Quantitative Finance, 2024
Druh dokumentu: Working Paper
Popis: Previously, in [GR19], we derived a rational approximation of the solution of the rough Heston fractional ODE in the special case \lambda = 0, which corresponds to a pure power-law kernel. In this paper we extend this solution to the general case of the Mittag-Leffler kernel with \lambda \geq 0. We provide numerical evidence of the convergence of the solution.
Comment: 10 pages, 6 figures
Databáze: arXiv