Results 21 to 30 of about 1,240,454 (293)
Diffusion in Cauchy Elastic Solid [PDF]
, 2022 It is commonly accepted that a starting point of the science of diffusion is the phenomenological diffusion equation postulated by German physiologist Adolf Fick inspired by experiments on diffusion by Thomas Graham and Robert Brown.
Danielewski, Marek, Sapa, Lucjan
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Global existence and asymptotic behaviour for a degenerate diffusive SEIR model
Electronic Journal of Qualitative Theory of Differential Equations, 2005 In this paper we analyze the global existence and asymptotic behavior of a reaction diffusion system with degenerate diffusion arising in modeling the spatial spread of an epidemic disease.
T. Aliziane, M. Langlais
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Stability of Densities for Perturbed Degenerate Diffusions [PDF]
Theory of Probability & Its Applications, 2017 We study the sensitivity of the densities of some Kolmogorov like degenerate diffusion processes with respect to a perturbation of the coefficients of the non-degenerate component. Under suitable (quite sharp) assumptions we quantify how the pertubation of the SDE affects the density.
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One-Dimensional Degenerate Diffusion Operators [PDF]
Mediterranean Journal of Mathematics, 2013 The aim of this paper is to present some results about generation, sectoriality and gradient estimates both for the semigroup and for the resolvent of suitable realizations of the operators [\Ab u(x)=γxu"(x) + b u'(x),] with constants $γ>0$ and $b\geq 0$, in the space $C([0,\infty])$
ALBANESE, Angela Anna +1 more
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Diffusion in Metals and Intermetallics: An Overview [PDF]
, 2022 After a few remarks about the history of diffusion in solids we remind the reader to some basics of diffusion such as tracer diffusion, interdiffusion, high-diffusivity paths, and basic diffusion mechanism in solids.
Mehrer, Helmut
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C1–regularity for degenerate diffusion equations
Advances in Mathematics, 2022 To appear in Advances in ...
Andrade, P. +3 more
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Asymptotic behavior for parabolic equations with interior degeneracy
Examples and Counterexamples, 2022 The long time behavior of a class of degenerate parabolic equations in a bounded domain will be considered in the sense that the nonnegative diffusion coefficient a(x)is allowed to vanish in a set of positive measure in the interior of the domain.
María Astudillo +3 more
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Initial-boundary value problem for the time-fractional degenerate diffusion equation
Вестник КазНУ. Серия математика, механика, информатика, 2022 In this paper the initial-boundary value problems for the one-dimensional linear time-fractional diffusion equations with the time-fractional derivative ∂ α t of order α ∈ (0, 1) in the variable t and time-degenerate diffusive coefficients t β with β ≥ 1
A. G. Smadiyeva
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A non-linear degenerate equation for direct aggregation and traveling wave dynamics [PDF]
, 2010 The gregarious behavior of individuals of populations is an important factor in avoiding predators or for reproduction. Here, by using a random biased walk approach, we build a model which, after a transformation, takes the general form [u_{t}=[D(u)u_{x}]
Maini, P. K. +8 more
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Decoupling atomic diffusion degeneracy in L12 intermetallics
Materials Research LettersIn this work, a degenerate diffusion state is identified for common L12 intermetallics in well-defined five-frequency model (FFM) and anti-site bridge model (ASB).
Haiyu Luo, Wensheng Liu, Chaoping Liang
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