activity
20002022
most citedEvolution of correlation structure of industrial indices of US equity markets

67 citations · 128 across the 35 of their papers we have counts for

collaborators

41 papers

q-fin.ST2022★ 7 cited

Efficiency of the Moscow Stock Exchange before 2022

Andrey Shternshis, Piero Mazzarisi, Stefano Marmi

This paper investigates the degree of efficiency for the Moscow Stock Exchange. A market is called efficient if prices of its assets fully reflect all available information. We sho…

math.DS2022★ 1 cited

The Yoccoz-Birkeland livestock population model coupled with random price dynamics

Riccardo Ceccon, Giulia Livieri, Stefano Marmi

We study a random version of the population-market model proposed by Arlot, Marmi and Papini in Arlot et al. (2019). The latter model is based on the Yoccoz-Birkeland integral equa…

math.ST2021

Volatility of volatility estimation: central limit theorems for the Fourier transform estimator and empirical study of the daily time series stylized facts

Giacomo Toscano, Giulia Livieri, Maria Elvira Mancino +1

We study the asymptotic normality of two feasible estimators of the integrated volatility of volatility based on the Fourier methodology, which does not require the pre-estimation…

math.DS2021★ 1 cited

A convergence criterion for the unstable manifolds of the MacKay approximate renormalisation

Seul Bee Lee, Stefano Marmi, Tanja I. Schindler

We give an explicit arithmetical condition which guarantees the existence of the unstable manifold of the MacKay approximate renormalisation scheme for the breakup of invariant tor…

math.DS2021

The Brjuno functions of the by-excess, odd, even and odd-odd continued fractions and their regularity properties

Seul Bee Lee, Stefano Marmi

The Brjuno function was introduced by Yoccoz to study the linearizability of holomorphic germs and other one-dimensional small divisor problems. The Brjuno functions associated wit…

math.DS2021

Analytic linearization of a generalization of the semi-standard map: radius of convergence and Brjuno sum

Claire Chavaudret, Stefano Marmi

One considers a system on close to an invariant curve which can be viewed as a generalization of the semi-standard map to a trigonometric polynomial with many Fourie…