Results 41 to 50 of about 328 (78)

A parabolic differential equation with unbounded piecewise constant delay

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 15, Issue 2, Page 339-346, 1992., 1991
A partial differential equation with the argument [λt] is studied, where [•] denotes the greatest integer function. The infinite delay t − [λt] leads to difference equations of unbounded order.
Joseph Wiener, Lokenath Debnath
wiley   +1 more source

Incompressible limit for the compressible viscoelastic fluids in critical space

open access: yesAdvances in Nonlinear Analysis
In this article, we consider the incompressible limit of global-in-time strong solutions with arbitrary large initial velocity for the compressible viscoelastic fluids in the sense of critical Besov framework. We decouple our compressible system into two
Han Bin, Wu Dan
doaj   +1 more source

An existence theorem for differential inclusions on Banach space

open access: yesInternational Journal of Stochastic Analysis, Volume 5, Issue 2, Page 123-129, 1992., 1991
In this paper we consider the question of existence of solutions for a large class of nonlinear differential inclusions on Banach space arising from control theory.
N. U. Ahmed
wiley   +1 more source

Spatial and age-dependent population dynamics model with an additional structure: can there be a unique solution? [PDF]

open access: yes, 2013
A simple age-dependent population dynamics model with an additional structure or physiological variable is presented in its variational formulation. Although the model is well-posed, the closed form solution with space variable is difficult to obtain ...
Tchuenche, Jean M.
core  

Linear vs. nonlinear effects for nonlinear Schrodinger equations with potential [PDF]

open access: yes, 2004
We review some recent results on nonlinear Schrodinger equations with potential, with emphasis on the case where the potential is a second order polynomial, for which the interaction between the linear dynamics caused by the potential, and the nonlinear ...
Carles R.   +13 more
core   +3 more sources

Boundary value problems for partial differential equations with piecewise contant delay

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 14, Issue 2, Page 363-379, 1991., 1991
The influence of certain discontinuous delays on the behavior of solutions to some typical equations of mathematical physics is studied.
Joseph Wiener
wiley   +1 more source

Stability on 3D Boussinesq system with mixed partial dissipation

open access: yesAdvances in Nonlinear Analysis
In the article, we are concerned with the three-dimensional anisotropic Boussinesq equations with the velocity dissipation in x2{x}_{2} and x3{x}_{3} directions and the thermal diffusion in only x3{x}_{3} direction.
Lin Hongxia   +3 more
doaj   +1 more source

Partial differential equations with piecewise constant delay

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 14, Issue 3, Page 485-496, 1991., 1990
The influence of certain discontinuous delays on the behavior of solutions to partial differential equations is studied. In Section 2, the initial value problems (IVP) are discussed for differential equations with piecewise constant argument (EPCA) in partial derivatives.
Joseph Wiener, Lokenath Debnath
wiley   +1 more source

Local and global well-posedness of the Maxwell-Bloch system of equations with inhomogeneous broadening

open access: yesAdvances in Nonlinear Analysis
The Maxwell-Bloch system of equations with inhomogeneous broadening is studied, and the local and global well-posedness of the corresponding initial-boundary value problem is established by taking advantage of the integrability of the system and making ...
Biondini Gino   +2 more
doaj   +1 more source

A free boundary model for transport-induced neurite growth

open access: yesEuropean Journal of Applied Mathematics
We introduce a free boundary model to study the effect of vesicle transport onto neurite growth. It consists of systems of drift-diffusion equations describing the evolution of the density of antero- and retrograde vesicles in each neurite coupled to ...
Greta Marino   +2 more
doaj   +1 more source

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