Geodesic
Estimates for the Kolmogorov widths of weighted Sobolev classes on a domain with cusp: case of weights that are functions of the distance from the boundary
Eurasian mathematical journal, Tome 8 (2017) no. 4, pp. 102-106

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In this article order estimates for the Kolmogorov widths of weighted Sobolev classes in weighted Lebesgue spaces on domains with cusp were obtained. Here weights are functions of distance from the boundary. 
@article{EMJ_2017_8_4_a11,
     author = {A. A. Vasil'eva},
     title = {Estimates for the {Kolmogorov} widths of weighted {Sobolev} classes on a domain with cusp: case of weights that are functions of the distance from the boundary},
     journal = {Eurasian mathematical journal},
     pages = {102--106},
     publisher = {mathdoc},
     volume = {8},
     number = {4},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EMJ_2017_8_4_a11/}
}
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A. A. Vasil'eva. Estimates for the Kolmogorov widths of weighted Sobolev classes on a domain with cusp: case of weights that are functions of the distance from the boundary. Eurasian mathematical journal, Tome 8 (2017) no. 4, pp. 102-106. http://geodesic.mathdoc.fr/item/EMJ_2017_8_4_a11/