Zobrazeno 1 - 10
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pro vyhledávání: '"and, Astuto"'
In recent years, the study of biological transportation networks has attracted significant interest, focusing on their self-regulating, demand-driven nature. This paper examines a mathematical model for these networks, featuring nonlinear elliptic eq
Externí odkaz:
http://arxiv.org/abs/2408.15680
In this paper, a comparative study between the Coco-Russo scheme (based on finite-difference scheme) and the $\mathghost$-FEM (based on finite-element method) is presented when solving the Poisson equation in arbitrary domains. The comparison between
Externí odkaz:
http://arxiv.org/abs/2405.16582
This paper focuses on the numerical solution of elliptic partial differential equations (PDEs) with Dirichlet and mixed boundary conditions, specifically addressing the challenges arising from irregular domains. Both finite element method (FEM) and f
Externí odkaz:
http://arxiv.org/abs/2402.04048
Autor:
Astuto, Clarissa
In this paper, we propose high order numerical methods to solve a 2D advection diffusion equation, in the highly oscillatory regime. We use an integrator strategy that allows the construction of arbitrary high-order schemes {leading} to an accurate a
Externí odkaz:
http://arxiv.org/abs/2401.12226
Autor:
Bacq-Labreuil, Benjamin, Fawaz, Chafic, Okazaki, Yuichi, Obata, Yukiko, Cercellier, Hervé, Lefevre, Patrick, Bertran, François, Santos-Cottin, David, Yamamoto, Hajime, Yamada, Ikuya, Azuma, Masaki, Horiba, Koji, Kumigashira, Hiroshi, d'Astuto, Matteo, Biermann, Silke, Lenz, Benjamin
We study two related universal anomalies of the spectral function of cuprates, so called waterfall and high-energy kink features, by a combined cellular dynamical mean-field theory and angle-resolved photoemission study for the oxychloride Na$_x$Ca$_
Externí odkaz:
http://arxiv.org/abs/2312.14381
Autor:
Li, X. T., Tu, S. J., Chaix, L., Fawaz, C., d'Astuto, M., Li, X., Yakhou-Harris, F., Kummer, K., Brookes, N. B., Garcia-Fernandez, M., Zhou, K. J., Lin, Z. F., Yuan, J., Jin, K., Dean, M. P. M., Liu, X.
Publikováno v:
Phys. Rev. Lett. 132, 056002 (2024)
We investigated the high energy spin excitations in electron-doped $\mathrm{La}_{2-x} \mathrm{Ce}_x \mathrm{CuO}_{4}$, a cuprate superconductor, by resonant inelastic x-ray scattering (RIXS) measurements. Efforts were paid to disentangle the paramagn
Externí odkaz:
http://arxiv.org/abs/2310.13214
Autor:
Hansen, M. F., Layek, S., Vaney, J. -B., Chaix, L., Suchomel, M. R., Mikolasek, M., Garbarino, G., Chumakov, A., Rüffer, R., Nassif, V., Hansen, T., Elkaim, E., Pelletier, T., Mayaffre, H., Bernardini, F., Sulpice, A., Núñez-Regueiro, M., Rodière, P., Cano, A., Tencé, S., Toulemonde, P., Julien, M. -H., d'Astuto, M.
The magnetic and structural properties of the recently discovered pnictogen/chalcogen-free superconductor LaFeSiH ($T_c\simeq10$~K) have been investigated by $^{57}$Fe synchrotron M{\"o}ssbauer source (SMS) spectroscopy, x-ray and neutron powder diff
Externí odkaz:
http://arxiv.org/abs/2309.02241
Autor:
Astuto, Clarissa, Russo, Giovanni
Many physical systems are governed by ordinary or partial differential equations (see, for example, Chapter ''Differential equations'', ''System of Differential Equations''). Typically the solution of such systems are functions of time or of a single
Externí odkaz:
http://arxiv.org/abs/2309.00968
We study self-regulating processes modeling biological transportation networks as presented in \cite{portaro2023}. In particular, we focus on the 1D setting for Dirichlet and Neumann boundary conditions. We prove an existence and uniqueness result un
Externí odkaz:
http://arxiv.org/abs/2307.16436
In this paper we propose a numerical method to solve a 2D advection-diffusion equation, in the highly oscillatory regime. We use an efficient and robust integrator which leads to an accurate approximation of the solution without any time step-size re
Externí odkaz:
http://arxiv.org/abs/2307.14001