Cuspidal edges on focal surfaces of regular surfaces

Indagationes Mathematicae 2026 Open access

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Authors: Keisuke Teramoto
DOI: 10.1016/j.indag.2026.07.004
Cited by: 0

Abstract

We investigate geometric invariants of cuspidal edges on focal surfaces of regular surface. In particular, we shall clarify the sign of the singular curvature at a cuspidal edge on a focal surface using singularities of parallel surface of a given surface satisfying certain conditions.

Fields of Study & Subjects

Geometric Analysis and Curvature Flows Algebraic Geometry and Number Theory Holomorphic and Operator Theory

Publication details

Journal / source
Indagationes Mathematicae
Publication date
1 July 2026
Language
EN