Results 81 to 90 of about 7,825,197 (282)

Non-Smooth Stochastic Lyapunov Functions With Weak Extension of Viscosity Solutions

, 2019
This paper proposes a notion of viscosity weak supersolutions to build a bridge between stochastic Lyapunov stability theory and viscosity solution theory.
Hoshino, Kenta, Nishimura, Yuki
core  

Correlation of turbulent trailing vortex decay data [PDF]

A correlation function, derived on the basis of self similar variable eddy viscosity decay, is introduced and utilized to correlate aircraft trailing vortex velocity data from ground and flight experiments.
Iversen, J. D.
core   +1 more source

Extending infinity harmonic functions by rotation

Electronic Journal of Differential Equations, 2015
If $u(\mathbf{x}, y)$ is an infinity harmonic function, i.e., a viscosity solution to the equation $-\Delta_\infty u=0$ in $\Omega \subset \mathbb{R}^{m+1}$ then the function $v(\mathbf{x}, \mathbf{z})= u(\mathbf{x}, \|\mathbf{z}\|)$ is infinity ...
Gustaf Gripenberg
doaj  

Artificial Neural Network Model to Estimate the Viscosity of Polymer Solutions for Enhanced Oil Recovery

Applied Sciences, 2016
Polymer flooding is now considered a technically- and commercially-proven method for enhanced oil recovery (EOR). The viscosity of the injected polymer solution is the key property for successful polymer flooding.
Pan-Sang Kang, Jong-Se Lim, Chun Huh
doaj   +1 more source

Uniqueness Results of Semilinear Parabolic Equations in Infinite-Dimensional Hilbert Spaces

Mathematics
This paper is devoted to the uniqueness of solutions for a class of nonhomogeneous stationary partial differential equations related to Hamilton–Jacobi-type equations in infinite-dimensional Hilbert spaces.
Carlo Bianca, Christian Dogbe
doaj   +1 more source

Continuous dependence estimate for a degenerate parabolic-hyperbolic equation with Levy noise

, 2016
In this article, we are concerned with a multidimensional degenerate parabolic-hyperbolic equation driven by Levy processes. Using bounded variation (BV) estimates for vanishing viscosity approximations, we derive an explicit continuous dependence ...
Koley, Ujjwal, Majee, Ananta K., Vallet, Guy   +2 more
core  

Existence and uniqueness for a nonlinear parabolic/Hamilton-Jacobi coupled system describing the dynamics of dislocation densities [PDF]

, 2007
We study a mathematical model describing the dynamics of dislocation densities in crystals. This model is expressed as a one-dimensional system of a parabolic equation and a first order Hamilton-Jacobi equation that are coupled together.
Ibrahim, Hassan
core   +3 more sources

Fully nonlinear degenerate equations with applications to Grad equations

Electronic Journal of Qualitative Theory of Differential Equations
We consider a class of degenerate elliptic fully nonlinear equations with applications to Grad equations: \begin{align*} \begin{cases} |Du|^\gamma \mathcal{M}_{\lambda,\Lambda}^+\big(D^2u(x)\big)=f\big(|u\geq u(x)|\big) &\text{ in }\Omega\\ u=g ...
Priyank Oza
doaj   +1 more source

Viscosity of polymer solutions [PDF]

Journal of Chemical Education, 1992
Abstracts for Volume 5A, Number 2. This program contains three components: "Density of Liquids", "Viscosity of Liquids", and "Viscosity of Polymer Solutions".
openaire   +1 more source

Viscosity of silicate solutions

Langmuir, 1993
High precision viscosity measurements of electrolyte solns. were used to obtain information about interionic interactions. In solns. of Me4N+ (TMA) silicates values for the A and D coeff. in the Jones-Dole equation are significantly higher than for Na and K silicate solns. Ion assocn. between cations and anions in the silicate solns.
Donck, van der, J.C.J., Stein, H.N.
openaire   +2 more sources