RT Journal Article T1 Infinite derivatives of the Takagi-Van der Waerden functions A1 Ferrera Cuesta, Juan A1 Gómez Gil, Javier A1 Llorente Jorge, Jesús AB In this paper we characterize the set of points where the lateral derivatives of the Takagi-Van der Waerden functions are infinite. We also prove that the set of points with infinite derivative has Hausdorff dimension one. PB Elsevier YR 2019 FD 2019 LK https://hdl.handle.net/20.500.14352/133232 UL https://hdl.handle.net/20.500.14352/133232 LA eng NO J. Ferrera, J. Gómez Gil, J. Llorente, Infinite derivatives of the Takagi–Van der Waerden functions, J. Math. Anal. Appl. 479 (2019), no. 1, 987–1003. NO Ministerio de Economía, Industria y Competitividad DS Docta Complutense RD 20 mar 2026