The complexity of the set of squares in the homeomorphism group of the circle

• Autorzy: Paul Gartside , Bojana Pejić
• Języki publikacji: EN

Abstrakty

EN

The set of squares in the group of autohomeomorphisms of the circle is complete analytic, and hence analytic but not Borel.

Kategorie tematyczne

• 54H05: Descriptive set theory (topological aspects of Borel, analytic, projective, etc. sets)
• 03E15: Descriptive set theory
• 28A05: Classes of sets (Borel fields, σ -rings, etc.), measurable sets, Suslin sets, analytic sets

• Wydawca: Institute of Mathematics Polish Academy of Sciences
• Czasopismo: Fundamenta Mathematicae
• Rocznik: 2007
• Tom: 195
• Numer: 2
• Strony: 125-134

Daty

wydano

2007

Twórcy

autor

Paul Gartside

• Department of Mathematics, University of Pittsburgh, 301 Thackeray Hall, Pittsburgh, PA 15260, U.S.A.

autor

Bojana Pejić

• Department of Mathematics, University of Pittsburgh, 301 Thackeray Hall, Pittsburgh, PA 15260, U.S.A.

Identyfikatory

DOI

10.4064/fm195-2-2