Výsledky vyhledávání - "Ospina, Carlos A."

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Some real Rel trajectories in $\mathcal{H}(1,1)$ that are not recurrent

Autor: Ospina, Carlos

We study the real Rel orbits of some translation surfaces in the stratum $\mathcal{H}(1,1)$. Specifically, surfaces that are tremors of the locus of branched double covers of tori. We give necessary and sufficient conditions on tremors of a surface s

Externí odkaz: http://arxiv.org/abs/2406.07495

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Slow entropy and variational dynamical systems

Autor: Cheng, Minhua, Ospina, Carlos, Vinhage, Kurt, Zhai, Yibo

We define variational properties for dynamical systems with subexponential complexity, and study these properties in certain specific examples. By computing the value of slow entropy directly, we show that some subshifts are not variational, while a

Externí odkaz: http://arxiv.org/abs/2405.11137

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Patterning edge-like defects and tuning defective areas on the basal plane of ultra-large MoS$_{2}$ monolayers toward hydrogen evolution reaction

Autor: Florindo, Bianca Rocha, Hasimoto, Leonardo H., de Freitas, Nicolli, Candiotto, Graziâni, Lima, Erika Nascimento, de Lourenço, Cláudia, de Araujo, Ana B. S., Ospina, Carlos, Bettini, Jefferson, Leite, Edson R., Lima, Renato S., Fazzio, Adalberto, Capaz, Rodrigo B., Santhiago, Murilo

Publikováno v: J. Mater. Chem. A, 2023,11, 19890-19899

The catalytic sites of MoS$_{2}$ monolayers towards hydrogen evolution are well known to be vacancies and edge-like defects. However, it is still very challenging to control the position, size, and defective areas on the basal plane of Mo$S_{2}$ mono

Externí odkaz: http://arxiv.org/abs/2311.04413

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Thurston's Theorem: Entropy in Dimension One

Autor: Dickmann, Ryan, Domat, George, Hill, Thomas, Kwak, Sanghoon, Ospina, Carlos, Patel, Priyam, Rechkin, Rebecca

Publikováno v: Math. Res. Lett. 31 (2024), 127-174

In his paper, Thurston shows that a positive real number $h$ is the topological entropy for an ergodic traintrack representative of an outer automorphism of a free group if and only if its expansion constant $\lambda = e^h$ is a weak Perron number. T

Externí odkaz: http://arxiv.org/abs/2209.15102

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