Results 81 to 90 of about 14,488 (245)

Blow-up analysis for a semilinear parabolic equation with nonlinear memory and nonlocal nonlinear boundary condition

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2010
In this paper, we consider a semilinear parabolic equation $$u_t=\Delta u+u^q\int_0^tu^p(x,s)ds,\quad x\in \Omega,\quad t>0$$ with nonlocal nonlinear boundary condition $u|_{\partial\Omega\times(0,+\infty)}=\int_\Omega\varphi(x,y) u^l(y,t)dy$ and ...
Dengming Liu, Chunlai Mu
doaj   +1 more source

Markov Perfect Nash Equilibrium in stochastic differential games as solution of a generalized Euler Equations System [PDF]

open access: yes
This paper gives a new method to characterize Markov Perfect Nash Equilibrium in stochastic differential games by means of a set of Generalized Euler Equations.
Juan Pablo Rincón-Zapatero   +1 more
core  

A Liouville theorem for ancient solutions to a semilinear heat equation and its elliptic counterpart

open access: yes, 2020
We establish the nonexistence of nontrivial ancient solutions to the nonlinear heat equation $u_t=\Delta u+|u|^{p-1}u$ which are smaller in absolute value than the self-similar radial singular steady state, provided that the exponent $p$ is strictly ...
Sourdis, Christos
core  

Integrating Economic and Environmental Analysis for Sustainable Systems: A Comprehensive Framework for Power Generation and Desalination Using Solar and Geothermal Resources

open access: yesInternational Journal of Energy Research, Volume 2025, Issue 1, 2025.
This study thoroughly examines a technology that uses geothermal and solar energy to generate freshwater and electricity simultaneously. It explores this novel system’s economic and environmental facets. To assess the thermodynamic properties of the system, a complex thermodynamic model is created using MATLAB and verified using Thermoflex software ...
Mohammad Lotfalipour   +2 more
wiley   +1 more source

Very Singular Similarity Solutions and Hermitian Spectral Theory for Semilinear Odd-Order PDEs [PDF]

open access: yes, 2009
Very singular self-similar solutions of semilinear odd-order PDEs are studied on the basis of a Hermitian-type spectral theory for linear rescaled odd-order operators.Comment: 49 pages, 12 ...
B Dy, R. S. Fernandes, V. A. Galaktionov
core  

Comparative Study of Finite Difference and Finite Element Methods for Solving 2D Parabolic Convection–Diffusion–Reaction Equations With Variable Coefficients

open access: yesInternational Journal of Differential Equations, Volume 2025, Issue 1, 2025.
This study investigates the numerical solution of two‐dimensional parabolic convection–diffusion–reaction (CDR) equations with variable coefficients using the finite difference method (FDM) and the finite element method (FEM). The FDM employs central differences for spatial discretization and the implicit Euler method for time integration, while the ...
Endalew Getnet Tsega, Md. Kamrujjaman
wiley   +1 more source

Attractors for Nonautonomous Parabolic Equations without Uniqueness

open access: yesInternational Journal of Differential Equations, 2010
Using the theory of uniform global attractors of multivalued semiprocesses, we prove the existence of a uniform global attractor for a nonautonomous semilinear degenerate parabolic equation in which the conditions imposed on the nonlinearity provide the ...
Cung The Anh, Nguyen Dinh Binh
doaj   +1 more source

Asymptotic Lower Bound on the Spatial Analyticity Radius for Solutions of the Periodic Fifth Order KdV–BBM Equation

open access: yesInternational Journal of Differential Equations, Volume 2025, Issue 1, 2025.
In this work, consideration is given to the initial value problem associated with the periodic fifth‐order KdV–BBM equation. It is shown that the uniform radius of spatial analyticity σ(t) of solution at time t is bounded from below by ct−2/3 (for some c > 0), given initial data η0 that is analytic on the circle and has a uniform radius of spatial ...
Tegegne Getachew, Giovanni P. Galdi
wiley   +1 more source

Existence of solutions to Burgers equations in a non-parabolic domain

open access: yesElectronic Journal of Differential Equations, 2018
In this article, we study the semilinear Burgers equation with time variable coefficients, subject to boundary condition in a non-parabolic domain. Some assumptions on the boundary of the domain and on the coefficients of the equation will be imposed.
Yassine Benia, Boubaker-Khaled Sadallah
doaj  

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