Template:Selected anniversaries/August 31: Difference between revisions

From Gnomon Chronicles
Jump to navigation Jump to search
No edit summary
No edit summary
Line 26: Line 26:


||Heinrich Franz Friedrich Tietze (b. August 31, 1880) was an Austrian mathematician, famous for the Tietze extension theorem on functions from topological spaces to the real numbers. He also developed the Tietze transformations for group presentations, and was the first to pose the group isomorphism problem.
||Heinrich Franz Friedrich Tietze (b. August 31, 1880) was an Austrian mathematician, famous for the Tietze extension theorem on functions from topological spaces to the real numbers. He also developed the Tietze transformations for group presentations, and was the first to pose the group isomorphism problem.
||Friedrich Adolf Paneth (b. 31 August 1887) was an Austrian-born British chemist.


||1895 – Engelbert Zaschka, German engineer and designer, invented the Human-powered aircraft (d. 1955)
||1895 – Engelbert Zaschka, German engineer and designer, invented the Human-powered aircraft (d. 1955)

Revision as of 22:14, 12 December 2017