Results 21 to 30 of about 172 (152)
Travelling wave solutions to some PDEs of mathematical physics
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 21, Page 1105-1120, 2004., 2004 Nonlinear operations such as multiplication of distributions are not allowed in the classical theory of distributions. As a result, some ambiguities arise when we want to solve nonlinear partial differential equations such as differential equations of elasticity and multifluid flows, or some new cosmological models such as signature changing space ...
Kourosh Nozari, Ghasem Alizadeh Afrouzi
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Stochastic phase field $\alpha$-Navier-Stokes vesicle-fluid interaction model.
, 2021 International audienceWe consider a stochastic perturbation of the phase field alpha-Navier-Stokes model with vesicle-fluid interaction. It consists in a system of nonlinear evolution partial differential equations modeling the fluid-structure ...
Goudenège, Ludovic, Manca, Luigi
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Symmetry group analysis and invariant solutions of hydrodynamic‐type systems
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 10, Page 487-534, 2004., 2004 We study point and higher symmetries of systems of the hydrodynamic type with and without an explicit dependence on t, x. We consider such systems which satisfy the existence conditions for an infinite‐dimensional group of hydrodynamic symmetries which implies linearizing transformations for these systems.
M. B. Sheftel
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Asymptotics for critical nonconvective type equations
International Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 8, Page 377-405, 2004., 2004 We study large‐time asymptotic behavior of solutions to the Cauchy problem for a model of nonlinear dissipative evolution equation. The linear part is a pseudodifferential operator and the nonlinearity is a cubic pseudodifferential operator defined by means of the inverse Fourier transformation and represented by bilinear and trilinear forms with ...
Nakao Hayashi +2 more
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Abstract and Applied Analysis, Volume 2004, Issue 10, Page 815-829, 2004., 2004 This paper deals with the initial‐boundary value problem for the system of motion equations of an incompressible viscoelastic medium with Jeffreys constitutive law in an arbitrary domain of two‐dimensional or three‐dimensional space. The existence of weak solutions of this problem is obtained.
D. A. Vorotnikov, V. G. Zvyagin
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A rigorous derivation and energetics of a wave equation with fractional damping [PDF]
, 2020 We consider a linear system that consists of a linear wave equation on a horizontal hypersurface and a parabolic equation in the half space below. The model describes longitudinal elastic waves in organic monolayers at the water-air interface, which is ...
Netz, Roland R. +2 more
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The evolution of dust emitted by a uniform source above ground level
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 52, Page 3327-3343, 2003., 2003 A uniform source situated at a fixed location starts to emit dust at a certain time, t = 0, and maintains the same action for t > 0. The subsequent spread of the dust into space is governed by an initial boundary value problem of the atmospheric diffusion equation.
I. A. Eltayeb, M. H. A. Hassan
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Advances in Nonlinear Analysis, 2022 In this article, we will develop an analytical approach to construct the global bounded weak solutions to the initial-boundary value problem of a three-dimensional chemotaxis-Stokes system with porous medium cell diffusion Δnm\Delta {n}^{m} for m≥6563m ...
Tian Yu, Xiang Zhaoyin
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Surge motion on a floating cylinder in water of finite depth
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 57, Page 3643-3656, 2003., 2003 We derived added mass and damping coefficients of a vertical floating circular cylinder due to surge motion in calm water of finite depth. This is done by deriving the velocity potential for the cylinder by considering two regions, namely, interior region and exterior region.
Dambaru D. Bhatta
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International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.We study the initial value problem for the Majda–McLaughlin–Tabak model i∂tu+−∂x2α/2u=κDxβDxβu2Dxβu,ux,0=u0x, x∈R,t∈R, for α = 2 and −(1/4) < β < 1/2 with β ≠ 0, where u≔u(x, t) is a complex‐valued function. We show that the uniform radius of spatial analyticity σ(t) of the solutions at time t is bounded from below by c|t|−1/(2γ) for some positive ...
Tegegne Getachew +2 more
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