Abstract
We show that the classes of all discrete limits of sequences of ap- proximately continuous functions, of all discrete limits of sequences of derivatives and of all discrete limits of sequences of Baire 1 functions are the same. We describe also the discrete limits of sequences of quasicontinuous functions, and of sequences of almost everywhere continuous functions, and we present anec- essary condition which must be satisfied by the discrete limits of sequences of Tae -continuous functions.
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References
A. M. Bruckner, Differentiation of Real Functions, Lectures Notes in Math. 659, Springer-Verlag (Berlin, 1978).
Á. Császár and M. Laczkovich, Discrete and equal convergence, Studia Sci. Math. Hungar., 10 (1975), 463–472.
Á. Császár and M. Laczkovich, Some remarks on discrete Baire classes, Acta Math. Acad. Sci. Hungar., 33 (1979), 51–70.
C. Goffman, C. Neugebauer and T. Nishiura, Density topology and approximate continuity, Duke Math. J., 28 (1961), 497–506.
Z. Grande, Sur la r-continuité des fonctions de deux variables, Demonstratio Math., 11 (1978), 937–945.
Z. Grande and M. Topolewska, Sur les fonctions vectorielles approximativement continues, Cas. Pest. Math., 107 (1982), 333–340.
J. Lukes, J. Maly and L. Zajicek, Fine Topology Methods in Real Analysis and Potential Theory, Lecture Notes in Math. 1189, Springer-Verlag (Berlin, 1986).
T. Neubrunn, Quasi-continuity, Real Anal. Exch., 14 (1988–89), 259–306.
R. J. O'Malley, Approximately differentiable functions. The r topology, Pacific J. Math., 72 (1977), 207–222.
D. Preiss, Limits of approximately continuous functions, Czech. Math. J., 96 (1971), 371–372.
G. Petruska and M. Laczkovich, A theorem on approximately continuous functions, Acta Math. Acad. Sci. Hungar., 24 (1973), 383–387.
F. D. Tall, The density topology, Pacific J. Math., 62 (1976), 275–283.
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Grande, Z. On Discrete Limits of Sequences of Approximately Continuous Functions and tae-Continuous Functions. Acta Mathematica Hungarica 92, 39–50 (2001). https://doi.org/10.1023/A:1013747909952
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DOI: https://doi.org/10.1023/A:1013747909952