Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Yuste, Santos Bravo"'
Publikováno v:
Mediterr. J. Math. 21, 145 (2024)
An adaptive finite difference scheme for variable-order fractional-time subdiffusion equations in the Caputo form is studied. The fractional time derivative is discretized by the L1 procedure but using nonhomogeneous timesteps. The size of these time
Externí odkaz:
http://arxiv.org/abs/2409.12422
The mean square displacement (MSD) of intruders (tracer particles) immersed in a multicomponent granular mixture made up of smooth inelastic hard spheres in a homogeneous cooling state is explicitly computed. The multicomponent granular mixture is co
Externí odkaz:
http://arxiv.org/abs/2409.08726
The mean square displacement per collision of a molecule immersed in a gas at equilibrium is given by its mean square displacement between two consecutive collisions (mean square free path) corrected by a prefactor in the form of a series. The $n$-th
Externí odkaz:
http://arxiv.org/abs/2401.13571
Publikováno v:
Phys. Rev. E 108, 024903 (2023)
The Enskog kinetic theory is applied to compute the mean square displacement of intruders immersed in a granular gas of smooth inelastic hard spheres (grains). Both species (intruders and grains) are surrounded by an interstitial molecular gas (backg
Externí odkaz:
http://arxiv.org/abs/2305.09259
Publikováno v:
Diffusion fundamentals 24 (2015) 1, S.
We compute the mean square displacement (MSD) of intruders immersed in a freely cooling granular gas made up of smooth inelastic hard spheres. In general, intruders and particles of the granular gas are assumed to have different mechanical properties
Externí odkaz:
http://arxiv.org/abs/2112.06541
Publikováno v:
American Journal of Physics, vol 84 (2016) 426-433
A numerical matrix methodology is applied to quantum problems with periodic potentials. The procedure consists essentially in replacing the true potential by an alternative one, restricted by an infinite square well, and in expressing the wave functi
Externí odkaz:
http://arxiv.org/abs/1606.00211
Autor:
Yuste, Santos Bravo, Abad, Enrique
Publikováno v:
J. Phys. A: Math. Theor. 44 (2011) 075203
We present an iterative method to obtain approximations to Bessel functions of the first kind $J_p(x)$ ($p>-1$) via the repeated application of an integral operator to an initial seed function $f_0(x)$. The class of seed functions $f_0(x)$ leading to
Externí odkaz:
http://arxiv.org/abs/1101.2335
Publikováno v:
J. Chem. Phys. 128, 134507 (2008); 140, 179901(E) (2014)
The depletion force and depletion potential between two in principle unequal "big" hard spheres embedded in a multicomponent mixture of "small" hard spheres are computed using the Rational Function Approximation method for the structural properties o
Externí odkaz:
http://arxiv.org/abs/0711.3633
Publikováno v:
Phys. Rev. E 77, 032101 (2008)
The asymptotic mean number of distinct sites visited by a subdiffusive continuous time random walker in two dimensions seems not to have been explicitly calculated anywhere in the literature. This number has been calculated for other dimensions for o
Externí odkaz:
http://arxiv.org/abs/0711.1422