Geodesic
Convergence of the adapting grid method of Bakhvalov's type for singularly perturbed boundary value problems
Sibirskij žurnal vyčislitelʹnoj matematiki, Tome 19 (2016) no. 1, pp. 47-59.

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We consider the Galerkin finite element method for non-self-adjoint boundary value problems on Bakhvalov's grids. Using the Galerkin projections method the convergence of a sequence of computational grids with an unknown boundary of the boundary layer has been proved. Numerical examples are presented. 
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I. A. Blatov; E. V. Kitaeva. Convergence of the adapting grid method of Bakhvalov's type for singularly perturbed boundary value problems. Sibirskij žurnal vyčislitelʹnoj matematiki, Tome 19 (2016) no. 1, pp. 47-59. http://geodesic.mathdoc.fr/item/SJVM_2016_19_1_a5/

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