Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Benedusi, Pietro"'
Mathematical models for excitable tissue with explicit representation of individual cells are highly detailed and can, unlike classical homogenized models, represent complex cellular geometries and local membrane variations. However, these cell-based
Externí odkaz:
http://arxiv.org/abs/2404.08320
Autor:
Belluzzi, Luca, Riva, Simone, Janett, Gioele, Guerreiro, Nuno, Riva, Fabio, Benedusi, Pietro, Alemán, Tanausú del Pino, Ballester, Ernest Alsina, Bueno, Javier Trujillo, Štěpán, Jiří
Measurable linear scattering polarization signals have been predicted and detected at the solar disk center in the core of chromospheric lines. These forward-scattering polarization signals, which are of high interest for magnetic field diagnostics,
Externí odkaz:
http://arxiv.org/abs/2404.00104
The activity and dynamics of excitable cells are fundamentally regulated and moderated by extracellular and intracellular ion concentrations and their electric potentials. The increasing availability of dense reconstructions of excitable tissue at ex
Externí odkaz:
http://arxiv.org/abs/2403.04491
Autor:
Riva, Simone, Guerreiro, Nuno, Janett, Gioele, Rossinelli, Diego, Benedusi, Pietro, Krause, Rolf, Belluzzi, Luca
Approximated forms of the RII and RIII redistribution matrices are frequently applied to simplify the numerical solution of the radiative transfer problem for polarized radiation, taking partial frequency redistribution (PRD) effects into account. A
Externí odkaz:
http://arxiv.org/abs/2310.02021
In this work, we are interested in solving large linear systems stemming from the Extra-Membrane-Intra (EMI) model, which is employed for simulating excitable tissues at a cellular scale. After setting the related systems of partial differential equa
Externí odkaz:
http://arxiv.org/abs/2308.12145
Context. Numerical solutions to transfer problems of polarized radiation in solar and stellar atmospheres commonly rely on stationary iterative methods, which often perform poorly when applied to large problems. In recent times, stationary iterative
Externí odkaz:
http://arxiv.org/abs/2110.11873
Context. The numerical modeling of the generation and transfer of polarized radiation is a key task in solar and stellar physics research and has led to a relevant class of discrete problems that can be reframed as linear systems. In order to solve s
Externí odkaz:
http://arxiv.org/abs/2110.11861
We consider two parallel-in-time approaches applied to a (reaction) diffusion problem, possibly non-linear. In particular, we consider PFASST (Parallel Full Approximation Scheme in Space and Time) and space-time multilevel strategies. For both approa
Externí odkaz:
http://arxiv.org/abs/2006.12883
We present a novel approach aimed at high-performance uncertainty quantification for time-dependent problems governed by partial differential equations. In particular, we consider input uncertainties described by a Karhunen-Loeeve expansion and compu
Externí odkaz:
http://arxiv.org/abs/1911.06066
Publikováno v:
In Journal of Computational Physics 15 April 2023 479