finitely bi-Lipschitz mappings,
mappings with finite area distortion,
isometries and quasi-isometries,
weakly flat and strongly accessible boundaries,
homeomorphic extension to the boundary.
D. A. Kovtonyuk, V. I. Ryazanov, “Prime ends and the Orlicz–Sobolev classes”, Algebra i Analiz, 27:5 (2015), 81–116; St. Petersburg Math. J., 27:5 (2016), 765–788
D. A. Kovtonyuk, V. I. Ryazanov, R. R. Salimov, E. A. Sevost'yanov, “Boundary Behavior of Orlicz–Sobolev Classes”, Mat. Zametki, 95:4 (2014), 564–576; Math. Notes, 95:4 (2014), 509–519
D. A. Kovtonyuk, V. I. Ryazanov, R. R. Salimov, E. A. Sevost'yanov, “Toward the theory of the Orlicz–Sobolev classes”, Algebra i Analiz, 25:6 (2013), 50–102; St. Petersburg Math. J., 25:6 (2014), 929–963
D. A. Kovtonyuk, I. V. Petkov, V. I. Ryazanov, R. R. Salimov, “The boundary behavior and the Dirichlet problem for the Beltrami equations”, Algebra i Analiz, 25:4 (2013), 101–124; St. Petersburg Math. J., 25:4 (2014), 587–603
D. A. Kovtonyuk, V. I. Ryazanov, “On the Theory of Generalized Quasi-Isometries”, Mat. Zametki, 91:4 (2012), 571–577; Math. Notes, 91:4 (2012), 535–541
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