 Real Analysis Lecture Notes: 3.5 Functions of Bounded Variation by Christopher E. Heil

By Christopher E. Heil, printed as Christopher Heil. The introduction identifies these as lecture notes from 2007, and the first page separately states copyright 2007. The 2019 date belongs to the textbook advertised in the introduction. Georgia Institute of Technology hosts the author’s website. The introductory acknowledgments identify underlying texts rather than additional authors of the notes.

Online text: heil.math.gatech.edu/handouts/bv.pdf

Cited passages: Definition1 and pointwise convention, printedpp1–2; §3.5.2 Definition9 Lemma12 Exercise13 Theorem14, printedpp3–5.