Theodor Reye

Karl Theodor Reye (born 20 June 1838 in Ritzebüttel, Germany and died 2 July 1919 in Würzburg, Germany) was a German mathematician. He contributed to geometry, particularly projective geometry and synthetic geometry. He is best known for his introduction of configurations in the second edition of his book, Geometrie der Lage (Geometry of Position, 1876).[1] The Reye configuration of 12 points, 12 planes, and 16 lines is named after him.

Theodor Reye

Reye also developed a novel solution to the following three-dimensional extension of the problem of Apollonius: Construct all possible spheres that are simultaneously tangent to four given spheres.[2]

Life

Reye obtained his Ph.D. from the University of Göttingen in 1861. His dissertation was entitled "Die mechanische Wärme-Theorie und das Spannungsgesetz der Gase" (The mechanical theory of heat and the potential law of gases).

Mathematical work

Reye worked on conic sections, quadrics and projective geometry.

Reye's work on linear manifolds of projective plane pencils and of bundles on spheres influenced later work by Corrado Segre on manifolds. He introduced Reye congruences, the earliest examples of Enriques surfaces.

References
  1. Scott, Charlotte Angas (1899). "Reye's Geometrie der Lage". Bull. Amer. Math. Soc. 5 (4): 175–181. doi:10.1090/S0002-9904-1899-00580-9.
  2. Reye T (1879). Synthetische Geometrie der Kugeln (PDF) (in German). Leipzig: B. G. Teubner.

Further reading
  • Reye, Karl Theodor (1860) [1859-11-08]. Written at Zürich. Bornemann, K. R. (ed.). "Zur Theorie der Zapfenreibung" [On the theory of pivot friction]. Der Civilingenieur - Zeitschrift für das Ingenieurwesen. Neue Folge (NF) (in German). Freiberg: Buchhandlung J. G. Engelhardt. 6: 235–255. Retrieved 2018-05-25. (NB. Theodor Reye was a polytechnician in Zürich in 1860, but later became a professor in Straßburg. This paper established Reye's hypothesis and laid the foundation to what is known as Reye–Archard–Khrushchov wear law today.
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