搜索结果: 1-13 共查到“应用数学 nonlocal”相关记录13条 . 查询时间(0.093 秒)
On the nonlocal Fisher-KPP equation:steady states,spreading speed and global bounds
nonlocal Fisher-KPP equation steady states spreading speed global bounds
2015/7/14
We consider the Fisher-KPP equation with a non-local interaction term. We establish a condition on the interaction that allows for existence of non-constant periodic solutions,and prove uniform upper ...
Local and nonlocal pressure Hessian effects in real and synthetic fluid turbulence
pressure Hessian effects real synthetic fluid turbulence
2011/7/7
The Lagrangian dynamics of the velocity gradient tensor A in isotropic and homogeneous turbulence depend on the joint action of the self-streching term and the pressure Hessian. Existing closures for ...
Blow-up for a degenerate and singular parabolic system with nonlocal sources and absorptions
Degenerate and singular parabolic system blow up blow-up set
2010/11/1
This paper deals with the blow-up properties of the solution to the degenerate and singular parabolic system with nonlocal sources, absorptions and homogeneous Dirichlet boundary conditions. The exist...
Existence and approximation of solutions for nonlocal boundary value problems with mixed nonlinearities
Quasilinearization three-point boundary value problem
2010/9/20
In this paper, we study a second-order boundary value problem involving mixed nonlinearities in the differential equation and nonlinear nonlocal general three-point boundary conditions. We develop a g...
Fourth order positively smoothed Pade schemes for parabolic partial differential equations with nonlocal boundary conditions
Fourth order positively smoothed Pade schemes parabolic partial differential equations
2010/9/26
Parabolic partial differential equation with nonlocal boundary conditions arise in modeling of various physical phenomena in areas such as chemical diffusion, thermoelasticity, heat conduction process...
Fourth-order method for non-homogeneous heat equation with nonlocal boundary conditions
Heat equation non-local boundary conditions fourth-order numerical methods
2010/9/15
In this paper a fourth-order numerical scheme is developed and implemented for the solution of non-homogeneous heat equation ut = uxx + q(x, t) with integral boundary conditions. The results obtained ...
Finite-dimensional approximate controllability for a nonlocal parabolic problem
Approximate Controllability Diffusion Equation Optimal Control
2010/9/13
In this work we investigate finite–approximate controllability for a nonlocal parabolic problem defined in an bounded domain of RN. First, using a variational approach, we prove the controllability re...
Boundary Value Problem for Second-Order Differential Operators with Mixed Nonlocal Boundary Conditions
Green's Function Non Regular Boundary Conditions Regular Boundary Conditions Semi group with Singularities
2008/7/1
Boundary Value Problem for Second-Order Differential Operators with Mixed Nonlocal Boundary Conditions.
Coerciveness Inequality for Nonlocal Boundary Value Problems for Second Order Abstract Elliptic Differential Equations
Ellipticity Abstract Differential Equation Coerciveness Non Regular Elliptic Problems
2008/7/1
In this paper we give conditions which assure the coercive solvability of an abstract differential equation of elliptic type with an operator in the boundary conditions, and the completeness of genera...
Uniform blow-up profiles for a nonlocal degenerate parabolic system
Degenerate reaction-diffusion system Uniform blow-up profiles
2010/9/14
This paper deals with the blow-up profiles of the nonnegative solutions to a degenerate reaction-diffusion system with nonlinear nonlocal sources involved in a product with local terms, subject to the...
Existence and blow-up for a nonlocal degenerate parabolic equation
Degenerate parabolic equation Local existence and uniqueness
2010/9/16
In this paper, we establish the local existence and uniqueness of the solution for the degenerate parabolic equation with a nonlocal source and homogeneous Dirichlet boundary condition. Moreover, we p...
THE FINITE DIMENSION BEHAVIOR OF THE SCHRDINGER EQUATION WITH NONLOCAL INTEGRAL NONLINEARITY
Schrodinger equation nonlocal
2007/12/11
In this paper we discuss the long time behavior of the initial problem We show that in a weighted Hilbert space there exists a global attractor which is weakly compact and has finite Hausdorff and fra...
A CLASS OF NONLOCAL SINGULARLY PERTURBED PROBLEMS FOR NONLINEAR HYPERBOLIC DIFFERENTIAL EQUATION
Nonlocal problem nonlinear hy
2007/12/10
The nonlocal singularly perturbed problems for the hyperbolic differential equation are considered. Under suitable conditions, using the fixed point theorem, the asymptotic behavior of solution for th...