Brief Communications

The Question of the Exact Value of One-Sided Width Remains Open

M. A. Chahkiev

Russian State Social University, Moscow

Keywords: widths of periodic classes, the class $W_\infty^r$, one-sided width, counterexample.

Received: 21.12.2015

DOI: 10.4213/mzm11223

 English version: Mathematical Notes, 2016, 100:2, 341–342

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