Tverberg’s proof of the Jordan closed curve theoremстатья
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Дата последнего поиска статьи во внешних источниках: 2 октября 2018 г.
Аннотация:A proof of the classical theorem on a simple closed curve (Jordan's theorem) is discussed; this proof is given by a Norwegian mathematician H. Tverberg and is little known to specialists. The proof has a metric nature and makes it possible to obtain an important metric refinement of Jordan's theorem, which is interesting on its own.