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Baire 1 functions, approximately continuous functions and derivatives. (English) Zbl 0279.26003

26A21 Classification of real functions; Baire classification of sets and functions
Full Text: DOI
[1] I. P. Natanson,Theorie der Funktionen einer reellen Veränderlichen. Akademie Verlag (Berlin, 1961). · Zbl 0097.26601
[2] S. Saks,Theory of the Integral. Dover Publ., New York. · Zbl 0017.30004
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[4] G. Petruska-M. Laczkovich, A theorem on approximately continuous functions,Acta Math. Acad. Sci. Hung.,24 (1973), pp. 383–387. · Zbl 0289.26004 · doi:10.1007/BF01958051
[5] Z. Zahorski, Sur la première dérivée,Trans. Amer. Math. Soc.,69 (1950), pp. 1–54. · Zbl 0038.20602
[6] S. Marcus, Sur les dérivées dont les zéros forment un ensemble frontière partout dense.Rend. Circ. Mat. Palermo, (2)12 (1963), pp. 1–36. · Zbl 0124.03202 · doi:10.1007/BF02855906
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