Affine extensions of functions with a closed graph

DOI10.7494/OPMATH.2015.35.6.973zbMath1333.26002MaRDI QIDQ3467576

Waldemar Sieg, Marek Wójtowicz

Publication date: 3 February 2016

Published in: Opuscula Mathematica (Search for Journal in Brave)

zbMATH Keywords

\(G_\delta\)-setdiscontinuity pointfunction with a closed graph(perfectly) normal space

Mathematics Subject Classification ID

Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable (26A15) Extension of maps (54C20)

Related Items (4)

Linear extensions of some Baire-one functions ⋮ Extensions of functions with a closed graph and quasi-continuous functions with a closed graph from dense subspaces ⋮ Extensions of semicontinuous and quasi-continuous functions from dense subspaces ⋮ Separating sets by lower and upper semicontinuous functions with a closed graph

Cites Work

• A Hahn-Banach extension theorem for analytic mappings
• Functions with a Closed Graph

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