Heinrich Franz Friedrich Tietze (August 31, 1880 – February 17, 1964) was an Austrian mathematician, famous for the Tietze extension theorem. He also developed the Tietze transformations for group presentations, and was the first to pose the group isomorphism problem.

He was born in Schleinz, Austria and died in Munich, Germany.

External links

O'Connor, John J.; Robertson, Edmund F., "Heinrich Franz Friedrich Tietze", MacTutor History of Mathematics archive, University of St Andrews.

Heinrich Franz Friedrich Tietze at the Mathematics Genealogy Project

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