Submultiplicative properties of the $φ_{K}$-distortion function

Instytut Matematyczny Polskiej Akademii Nauk / Institute of Mathematics / Publishing house / Journals and Serials / Studia Mathematica / All issues

S. -L. Qiu, Studia Mathematica 117 (1996), 225-242 DOI: 10.4064/sm-117-3-225-242

Some inequalities related to the submultiplicative properties of the distortion function $φ_K(r)$ are derived.