Results 101 to 110 of about 1,301,601 (206)

On Discontinuous Galerkin Methods for Singularly Perturbed and Incompressible Miscible Displacement Problems [PDF]

, 2012
This thesis is concerned with the numerical approximation of problems of fluid flow, in particular the stationary advection diffusion reaction equations and the time dependent, coupled equations of incompressible miscible displacement in a porous medium.
CHAPMAN, JOHN,ROBERT, Chapman, John Robert   +1 more
core  

Fourth-order fitted mesh scheme for semilinear singularly perturbed reaction-diffusion problems. [PDF]

BMC Res Notes, 2023
Reda BT, Bullo TA, Duressa GF.
europepmc   +1 more source

Solving singularly perturbed fredholm integro-differential equation using exact finite difference method. [PDF]

BMC Res Notes, 2023
Badeye SR, Woldaregay MM, Dinka TG.
europepmc   +1 more source

Heteroclinic solutions in singularly perturbed discontinuous differential equations: a non-generic case

Electronic Journal of Qualitative Theory of Differential Equations
We derive Melnikov type conditions for the persistence of heteroclinic solutions in perturbed slowly varying discontinuous differential equations. Opposite to [J. Differential Equations 400(2024), 314–375] we assume that the unperturbed (frozen) equation
Flaviano Battelli, Michal Fečkan, JinRong Wang   +2 more
doaj   +1 more source

Orthogonal Polynomials with Singularly Perturbed Freud Weights. [PDF]

Entropy (Basel), 2023
Min C, Wang L.
europepmc   +1 more source

Exponentially fitted numerical method for solving singularly perturbed delay reaction-diffusion problem with nonlocal boundary condition. [PDF]

BMC Res Notes, 2023
Wondimu GM, Woldaregay MM, Duressa GF, Dinka TG.   +3 more
europepmc   +1 more source

Graded mesh B-spline collocation method for two parameters singularly perturbed boundary value problems. [PDF]

MethodsX, 2023
Andisso FS, Duressa GF.
europepmc   +1 more source

A tension spline fitted numerical scheme for singularly perturbed reaction-diffusion problem with negative shift. [PDF]

BMC Res Notes, 2023
Ejere AH, Dinka TG, Woldaregay MM, Duressa GF.   +3 more
europepmc   +1 more source

A Petrov-Galerkin method for a singularly perturbed ordinary differential equation with non-smooth data [PDF]

, 2006
In this paper, a singularly perturbed ordinary differential equation\ud with non-smooth data is considered. The numerical method is\ud generated by means of a Petrov-Galerkin finite element method with\ud the piecewise-exponential test function and the ...
Liu, Fawang, Zheng, Tingting
core  

Singularly perturbed discrete differential equations

Discrete differential equations appear most prominently in planar map and lattice path enumeration. In this work we consider discrete differential equations with an additional parameter $x$, where the order of the equation is $1$ for $x=0$ but $k> 1$ for $x\ne 0$. We call such equations singularly perturbed.
Drmota, Michael, Hainzl, Eva-Maria
openaire   +2 more sources