Sur le prolongement des fonctions. (French) Zbl 0425.26004


26A21 Classification of real functions; Baire classification of sets and functions
26A15 Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable
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[1] K. Kuratowski,Topologie I (Warszawa, 1958).
[2] G. Petruska, M. Laczkovich, Baire 1 functions, approximately continuous functions and derivatives,Acta Math. Acad. Sci. Hungar.,25 (1974), 189–212. · Zbl 0279.26003
[3] W. Sierpiński, Sur une propriété des ensemblesF {\(\sigma\)} linéaires,Fund. Math.,14 (1929), 216–220.
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