**Georg Landsberg** was a German mathematician, known for his work in the theory of algebraic functions and as a co-author with Kurt Hensel of a classic text on the theory of algebraic functions of one variable.

- Bernhard Landsberg was a businessman, but we have not been able to find any further information about him.
- Philippina Landsberg died on 3 January 1898 in Breslau.
- Landsberg attended the St Elisabeth Gymnasium in Breslau.
- New buildings which had been built in the 1830s were being extended while Landsberg was a pupil as the popular school ran out of space.
- When Landsberg began his schooling there the headmaster was Karl Rudolf Fickert (1807-1888).
- Fickert, a classics scholar of high repute, had been headmaster from 1845 but retired in 1880 in the middle of Landsberg's time at the school.
- After completing his studies at the St Elisabeth Gymnasium, Landsberg then studied at the Universities of Breslau and Leipzig between 1883 and 1889.
- In addition to studying mathematics, Landsberg's other main subject at Breslau was physics which he was taught by Oskar Emil Meyer (1834-1909), Felix Auerbach (1856-1933), and Joachim Leonhard Weber (1848-1919).
- Although Landsberg's main topics at Breslau were mathematics and physics, he also studied a wide range of other topics.
- At Breslau, Landsberg also studied astronomy with Johann Gottfried Galle (1812-1910) who had moved to Breslau 1851 as Director of the Observatory, becoming Professor of Astronomy there from 1856.
- Landsberg took a chemistry course with Thomas August Theodor Poleck (1821-1906) who was appointed director of the pharmaceutical institute at the University of Breslau in 1867.
- Landsberg also studied with the biologist Ferdinand Julius Cohn (1828-1898) who worked at Breslau from 1849 until he retired.
- At Leipzig Landsberg took a narrower range of courses all within mathematics and physics.
- The only other lecturer that Landsberg studied with at Leipzig was the physicist Gustav Heinrich Wiedemann (1826-1899).
- Landsberg's doctorate was awarded by the University of Breslau in 1890.
- In 1890 Landsberg went to Berlin where he studied on his own, working towards his habilitation.
- (The house where Landsberg lived had been built around 1850 for the university's first gymnastics teacher, Dr Karl Wassmannsdorff (1821-1906).
- In the rear of the building, when Georg Landsberg was living there, Wassmannsdorff ran a private gym); and 1904, Hauptstrasse 118.
- It was Landsberg who encouraged Nielsen to study the mathematical problems underlying his doctoral dissertation of 1913.
- In a short autobiography appended to the thesis, he expresses his devotion to Landsberg, who had died shortly before.
- Landsberg studied the theory of functions of two variables and also the theory of higher dimensional curves.
- In particular the influence of Dedekind and Weber's 1882 joint article is pervasive throughout the book; Hensel and Landsberg explicitly pointed out the close connections with the theory of algebraic numbers, that had characterised the latest development of the field presented in their book.
- The approach developed by Hensel and Landsberg displays very clearly the close attachment of Dedekind's images of mathematical knowledge to those characteristic of nineteenth-century algebra.
- It was this call to Giessen that prompted the University of Kiel to promote Landsberg to an ordinary professorship.

Born 30 January 1865, Breslau, Prussia (now Wrocław, Poland). Died 14 September 1912, Kiel, Germany.

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Origin Poland

**O’Connor, John J; Robertson, Edmund F**: MacTutor History of Mathematics Archive