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William Richard Maximilian Hugo Threlfall (25 June 1888, in
William R. M. H. Threlfall
* {{DEFAULTSORT:Threlfall, William 1888 births 1949 deaths 20th-century German mathematicians Topologists
William Richard Maximilian Hugo Threlfall (25 June 1888, in Dresden
Dresden (, ; Upper Saxon: ''Dräsdn''; wen, label=Upper Sorbian, Drježdźany) is the capital city of the German state of Saxony and its second most populous city, after Leipzig. It is the 12th most populous city of Germany, the fourth larg ...
– 4 April 1949, in Oberwolfach
Oberwolfach ( gsw, label= Low Alemannic, Obberwolfä) is a town in the district of Ortenau in Baden-Württemberg, Germany. It is the site of the Oberwolfach Research Institute for Mathematics, or Mathematisches Forschungsinstitut Oberwolfach.
Ge ...
) was a British-born German
German(s) may refer to:
* Germany (of or related to)
**Germania (historical use)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizens of Germany, see also German nationality law
**Ger ...
mathematician
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems.
Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change.
History
On ...
who worked on algebraic topology
Algebraic topology is a branch of mathematics that uses tools from abstract algebra to study topological spaces. The basic goal is to find algebraic invariant (mathematics), invariants that classification theorem, classify topological spaces up t ...
. He was a coauthor of the standard textbook Lehrbuch der Topologie
In mathematics, ''Lehrbuch der Topologie'' (German for "textbook of topology") is a book by Herbert Seifert and William Threlfall, first published in 1934 and published in an English translation in 1980. It was one of the earliest textbooks on alge ...
.
In 1933 he signed the ''Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State
Bekenntnis der Professoren an den Universitäten und Hochschulen zu Adolf Hitler und dem nationalsozialistischen Staat officially translated into English as the Vow of allegiance of the Professors of the German Universities and High-Schools to Ad ...
''.Publications
* *Seifert, Threlfall: ''Lehrbuch der Topologie
In mathematics, ''Lehrbuch der Topologie'' (German for "textbook of topology") is a book by Herbert Seifert and William Threlfall, first published in 1934 and published in an English translation in 1980. It was one of the earliest textbooks on alge ...
'', Teubner 1934
*Seifert, Threlfall: ''Variationsrechnung im Großen'', Teubner 1938
See also
*Möbius–Kantor graph
In the mathematical field of graph theory, the Möbius–Kantor graph is a symmetric bipartite cubic graph with 16 vertices and 24 edges named after August Ferdinand Möbius and Seligmann Kantor. It can be defined as the generalized Petersen gra ...
*Schwarz triangle tessellation
In geometry, a Schwarz triangle, named after Hermann Schwarz, is a spherical triangle that can be used to tile a sphere (spherical tiling), possibly overlapping, through reflections in its edges. They were classified in .
These can be defined mor ...
References
* Gabriele DörflingerWilliam R. M. H. Threlfall
* {{DEFAULTSORT:Threlfall, William 1888 births 1949 deaths 20th-century German mathematicians Topologists