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Gerhard Hessenberg

1874 – 1925

German mathematician

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About Gerhard Hessenberg

Lived 1874 – 1925 (aged 51). Gerhard Hessenberg was a German mathematician and university teacher, known for Ordinal arithmetic.

Gerhard Hessenberg (; 16 August 1874 – 16 November 1925) was a German mathematician who worked in projective geometry, differential geometry, and set theory.

Career Hessenberg received his Ph.D. from the University of Berlin in 1899 under the guidance of Hermann Schwarz and Lazarus Fuchs.

His name is usually associated with projective geometry, where he is known for proving that Desargues' theorem is a consequence of Pappus's hexagon theorem, and differential geometry where he is known for introducing the concept of a connection. He was also a set theorist: the Hessenberg sum and product of ordinals are named after him. However, Hessenberg matrices are named for Karl Hessenberg, a near relative.

In 1908 Gerhard Hessenberg was an Invited Speaker of the International Congress of Mathematicians in Rome.

Publications

(also in book form as a separate publication from Verlag Vandenhoeck und Ruprecht, Göttingen 1906).

(unaltered reprint of the Teubner edition of 1912).

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Important facts

Birth century
Nationality
Known for
Ordinal arithmetic
Education
Humboldt-Universität zu Berlin, University of Berlin, University of Breslau
Employers
University of Tübingen, University of Bonn, Wrocław University of Science and Technology, University of Wrocław
Awards
Silver Leibniz medal

People in Gerhard Hessenberg's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Gerhard Hessenberg's

Frequently asked questions

Who was Gerhard Hessenberg?

German mathematician (1874–1925)

When was Gerhard Hessenberg born?

Gerhard Hessenberg was born on 16 August 1874 in Frankfurt.

When did Gerhard Hessenberg die?

Gerhard Hessenberg died on 16 November 1925 in Berlin.

What was Gerhard Hessenberg's occupation?

Gerhard Hessenberg was a mathematician and university teacher.

What was Gerhard Hessenberg known for?

Gerhard Hessenberg was known for Ordinal arithmetic.

What nationality was Gerhard Hessenberg?

Gerhard Hessenberg was German.

Sources & further reading

· Wikipedia: Gerhard Hessenberg

· Wikidata: Q78445

· DBpedia: Gerhard Hessenberg

Cite this page

APA: Biography.guide. (2026). Gerhard Hessenberg. https://biography.guide/gerhard-hessenberg/

MLA: "Gerhard Hessenberg." Biography.guide, https://biography.guide/gerhard-hessenberg/.

Chicago: "Gerhard Hessenberg." Biography.guide. https://biography.guide/gerhard-hessenberg/.

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