Hölder Estimates for the Regular Component of the Solution to a Singularly Perturbed Convection–Diffusion Equation

2017 ◽  
Vol 57 (12) ◽  
pp. 1935-1972 ◽  
Author(s):  
V. B. Andreev
2003 ◽  
Vol 3 (3) ◽  
pp. 493-512 ◽  
Author(s):  
Song Wang ◽  
Lutz Angermann

AbstractThis paper presents a convergence analysis for the exponentially fitted finite volume method in two dimensions applied to a linear singularly perturbed convection-diffusion equation with exponential boundary layers. The method is formulated as a nonconforming Petrov-Galerkin finite element method with an exponentially fitted trial space and a piecewise constant test space. The corresponding bilinear form is proved to be coercive with respect to a discrete energy norm. Numerical results are presented to verify the theoretical rates of convergence.


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