Computable subcontinua of semicomputable chainable Hausdorff continua

Autor: Vedran Čačić, Marko Horvat, Zvonko Iljazović
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Popis: In the setting of computable topological spaces, we consider semicomputable, chainable Hausdorff continua. If such a continuum S is decomposable, it can be computably approximated; more precisely, for every open cover U , there exist two computable points a ˆ , b ˆ and a computable subcontinuum S ˆ that is chainable from a ˆ to b ˆ and is U -close to S.
Databáze: OpenAIRE