Föreläsningar öfver teorin för Transformationsgrupper.
Häftad bok.
Hyggligt skick. Stockholm, Nordin & Josephson, 1900. 4to. [4] + 189 pp. In publisher’s printed wrappers. Bumped and worn, cover with slight loss at tail of spine. A copy from the author’s own collection. A student’s edition of von Koch’s notes for lectures on Sophus Lie’s theory of transformation groups, held 1894-1895. The first four pages are type-set, the main corpus is duplicated from the author’s manuscript.
