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    Tietze Space

    Basic information

    | Heinrich Franz Friedrich Tietze full name | Heinrich Franz Friedrich Tietze date of birth | Tuesday, August 31, 1880 (144 yr ago) date of death | Monday, February 17, 1964 (age: 83 yr) (60 yr ago) place of death | Munich, Upper Bavaria, Germany

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    Timeline

    Timeline

    Scientific contributions

    Heinrich Franz Friedrich Tietze | Tietze's graph

    Wikipedia summary

    Heinrich Franz Friedrich Tietze (August 31, 1880 - February 17, 1964) 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. Tietze's graph is also named after him; it describes the boundaries of a subdivision of the Möbius strip into six mutually-adjacent regions, found by Tietze as part of an extension of the four color theorem to non-orientable surfaces.

    Wikipedia page hits history

    Wikipedia page hits history

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