Using the Borsuk-Ulam Theorem by Jiří Matoušek (2003, 978-3-540-00362-5)

By Jiří Matoušek. Subtitle: Lectures on Topological Methods in Combinatorics and Geometry. First edition, Springer Berlin, Heidelberg. The publisher dates the printed edition to 2003 and the electronic edition to 2008.

Publisher page: link.springer.com/book/10.1007/978-3-540-76649-0

Chapter preview: page-one.springer.com/pdf/preview/10.1007/978-3-540-76649-0_2#page=2

Cited passage: §2.1, p. 22, the antipodal-temperature example and its continuity assumption. The publisher record verifies the book metadata and lists the Borsuk–Ulam chapter on pp. 21–46; the whole book is subscription content.