Search results for "Godi"

Juggler's exclusion process

2012

Juggler's exclusion process describes a system of particles on the positive integers where particles drift down to zero at unit speed. After a particle hits zero, it jumps into a randomly chosen unoccupied site. We model the system as a set-valued Markov process and show that the process is ergodic if the family of jump height distributions is uniformly integrable. In a special case where the particles jump according to a set-avoiding memoryless distribution, the process reaches its equilibrium in finite nonrandom time, and the equilibrium distribution can be represented as a Gibbs measure conforming to a linear gravitational potential.

Robust existence of nonhyperbolic ergodic measures with positive entropy and full support

2021

We prove that for some manifolds $M$ the set of robustly transitive partially hyperbolic diffeomorphisms of $M$ with one-dimensional nonhyperbolic centre direction contains a $C^1$-open and dense subset of diffeomorphisms with nonhyperbolic measures which are ergodic, fully supported and have positive entropy. To do so, we formulate abstract conditions sufficient for the construction of an ergodic, fully supported measure $\mu$ which has positive entropy and is such that for a continuous function $\phi\colon X\to\mathbb{R}$ the integral $\int\phi\,d\mu$ vanishes. The criterion is an extended version of the control at any scale with a long and sparse tail technique coming from the previous w…

Los trastornos de la conducta alimentaria y el espectro obsesivo-compulsivo: intrusiones mentales, egodistonía y creencias

2012

Las investigaciones a nivel psicopatológicos de la relación entre los Trastornos Alimentarios (TA) y el Trastorno Obsesivo-Compulsivo (TOC) son muy escasas. La presente tesis se enmarca precisamente dentro del análisis de dicha relación. Objetivos: 1.Analizar la Egosintonía y Egodistonía asociada a las intrusiones mentales de TA y TOC. 2.Analizar las creencias nucleares y creencias asociadas al TOC y su relación con Egosintonía y Egodistonía. Participantes: Un grupo de población general (n=349), de donde se extrajeron: Población subclínica-TA (n=12), población subclínica-TOC (n=18), y población sin riesgo de TA ni TOC(n=50). Contamos con dos muestras de mujeres con diagnóstico de TA (DSM-IV…

Classical operators on weighted Banach spaces of entire functions

2013

We study the operators of differentiation and of integration and the Hardy operator on weighted Banach spaces of entire functions. We estimate the norm of the operators, study the spectrum, and analyze when they are surjective, power bounded, hypercyclic, and (uniformly) mean ergodic.

On the Correlation and Ergodic Properties of the Squared Envelope of SOC Rayleigh Fading Channel Simulators

2012

Published version of an article in the journal: Wireless Personal Communications. Also available from the publisher at: http://dx.doi.org/10.1007/s11277-011-0493-2 In this paper, we investigate the correlation and ergodic properties of the squared envelope of a class of autocorrelation-ergodic (AE) sum-of-cisoids (SOC) simulation models for mobile Rayleigh fading channels. Novel closed-form expressions are presented for both the ensemble and the time autocorrelation functions (ACFs) of the SOC simulation model’s squared envelope. These expressions have been derived by assuming that the SOC model’s inphase and quadrature (IQ) components have arbitrary autocorrelation and cross-correlation pr…

Scenery Flow, Conical Densities, and Rectifiability

2015

We present an application of the recently developed ergodic theoretic machinery on scenery flows to a classical geometric measure theoretic problem in Euclidean spaces. We also review the enhancements to the theory required in our work. Our main result is a sharp version of the conical density theorem, which we reduce to a question on rectifiability.

Tekstikoneen aivotoiminta : ergodisuus ja sen mallintaminen Jaakko Yli-Juonikkaan romaanissa Neuromaani

2013

Tarkastelen pro gradu -tutkielmassani ergodisuutta ja sen saamia metaforisia malleja Jaakko Yli-Juonikkaan romaanissa Neuromaani (2012). Teoksen luvut on linkitetty toisiinsa monimutkaisilla tavoilla, ja niitä voi lukea haluamassaan järjestyksessä. Työni teoreettisena lähtökohtana on Espen Aarsethin kybertekstiteoria, jossa teksti nähdään merkityksiä tuottavana koneena ja lukija koneen käyttäjänä. Neuromaani vaatii lukijalta ei-triviaalia työtä, joten se on Aarsethin mukaan ergodinen teksti. Tavoitteenani on ensimmäiseksi tutkia, millaista aktiivisuutta lukijalta vaaditaan, ja millaisiin vaikeuksiin lukija ajautuu pyrkiessään etenemään tekstissä. Toiseksi tarkastelen tälle lukijan aktiivisu…

PARAMETER ESTIMATION FOR FRACTIONAL ORNSTEIN-UHLENBECK PROCESSES: NON-ERGODIC CASE

2011

We consider the parameter estimation problem for the non-ergodic fractional Ornstein-Uhlenbeck process defined as $dX_t=\theta X_tdt+dB_t,\ t\geq0$, with a parameter $\theta>0$, where $B$ is a fractional Brownian motion of Hurst index $H\in(1/2,1)$. We study the consistency and the asymptotic distributions of the least squares estimator $\hat{\theta}_t$ of $\theta$ based on the observation $\{X_s,\ s\in[0,t]\}$ as $t\rightarrow\infty$.

Analysis and performance of FBMC techniques with application to relay networks

2014

Optical Hole Burning and Thermal Irreversibility of Non-Ergodic Systems: Polymers, Proteins, Glasses

1989

A spectral hole is used to probe configurational dynamics of non-ergodic systems far below the glass transition temperature