Wall properties of domains in euclidean spaces.
Hyperbolic and uniform domains in Banach spaces.
Exhaustions of John domains.
Quasisymmetric embeddings of products of cells into the Euclidean space.
Linear bilipschitz extension property.
Bounded Turning and Quasiconformal Maps.
Quasiconformal Concordance.
The wall conjecture on domains in euclidean spaces.
Quasisymmetry and Unions.
Metric duality in Euclidean spaces.
Dividing an arc to subarcs with equal chords
The free quasiworld. Freely quasiconformal and related maps in Banach spaces
Bilipschitz Extensions of Maps Having Quasiconformal Extensions.
Extension of bilipschitz maps of compact polyhedra.
On the Geometric Definition for Quasiconformal Mappings.
Hyers-Ulam constants of Hilbert spaces
The best constant in the Hyers-Ulam theorem on isometric approximation in Hilbert spaces is equal to the Jung constant of the space.
Isometries of normed spaces
We improve the Mazur-Ulam theorem by relaxing the surjectivity condition.
Bilipschitz extensions from smooth manifolds.
We prove that every compact C-submanifold of R, with or without boundary, has the bilipschitz extension property in R.
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