Potemkin V. L.
Ukr. Mat. Zh. - 1998. - 50, № 11. - pp. 1522–1531
We establish that the classes of mappings with restrictions in measure cannot be compact except for certain degenerate cases. In particular, this implies that any David class ΓI is noncompact.
Ukr. Mat. Zh. - 1996. - 48, № 5. - pp. 716-718
We construct variations for classes of homeomorphisms with generalized derivatives in the case where restrictions in measure of general form are imposed on large values of dilation. We use the method for the construction of variations suggested by Gutlyanskii.