26A15 Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable {For properties determined by Fourier coefficients, see 42A16; for those determined by approximation properties, see 41A25, 41A27} 2717
26A18 Iteration of real functions in one variable [See also 37Bxx, 37Cxx, 37Exx, 39B12, 47H10, 54H25] 1279
26A21 Classification of real functions; Baire classification of sets and functions [See also 03E15, 28A05, 54C50, 54H05] 1232
26A24 Differentiation (real functions of one variable): general theory, generalized derivatives, mean value theorems [See also 28A15] 2758
26A27 Nondifferentiability (nondifferentiable functions, points of nondifferentiability), discontinuous derivatives 860