46 citations · 195 across the 27 of their papers we have counts for
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math.CA2015★ 1 cited
Homeomorphisms of the Heisenberg group preserving BMO
Riikka Korte, Niko Marola, Olli Saari
We provide a new geometric proof of Reimann's theorem characterizing quasiconformal mappings as the ones preserving functions of bounded mean oscillation. While our proof is new al…
math.AP2015★ 4 cited
Minima of quasisuperminimizers
Anders Björn, Jana Björn, Riikka Korte
Let u_i be a Q_i-quasisuperminimizer, i=1,2, and u=min{u_1,u_2}, where 1 <= Q_1 <= Q_2. Then u is a quasisuperminimizer, and we improve upon the known upper bound (due to Kinnunen…