Geodesic
Numerical solution of problems with singularities on locally refinig grids
Matematičeskoe modelirovanie, Tome 7 (1995) no. 1, pp. 61-68 
P. N. Vabishchevich. Numerical solution of problems with singularities on locally refinig grids. Matematičeskoe modelirovanie, Tome 7 (1995) no. 1, pp. 61-68. http://geodesic.mathdoc.fr/item/MM_1995_7_1_a4/
@article{MM_1995_7_1_a4,
     author = {P. N. Vabishchevich},
     title = {Numerical solution of problems with singularities on locally refinig grids},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {61--68},
     year = {1995},
     volume = {7},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1995_7_1_a4/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

A boundary value problem with point sources is considered. Difference schemes are constructed on locally refining grids. Examples of calculations are presented.