On functions discontinuous on countable sets

zbMath0712.26001MaRDI QIDQ923740

Frank S. Cater

Publication date: 1990

Published in: Real Analysis Exchange (Search for Journal in Brave)

zbMATH Keywords

perfect setsdiscontinuous real functionsfirst category setsnowhere monotone functions

Mathematics Subject Classification ID

Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable (26A15) Nondifferentiability (nondifferentiable functions, points of nondifferentiability), discontinuous derivatives (26A27)