William Threlfall

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William Threlfall in 1936 William Threlfall.jpg
William Threlfall in 1936

William Richard Maximilian Hugo Threlfall (25 June 1888 Dresden – 4 April 1949 Oberwolfach) was a German mathematician who worked on algebraic topology. He was a coauthor of the standard textbook Lehrbuch der Topologie.

Dresden Place in Saxony, Germany

Dresden is the capital city of the German state of Saxony, and with around 550,000 inhabitants, it is the state's second most populous city after Leipzig. It is the 12th most populous city of Germany, the fourth largest by area after Berlin, Hamburg and Cologne, as well as the third most populous city in the area of former East Germany, after (East) Berlin and Leipzig. Dresden is contiguous with Freital, Pirna, Radebeul, Meissen and Coswig, and its urban area has around 780,000 inhabitants, making it the largest in Saxony.

Oberwolfach Place in Baden-Württemberg, Germany

Oberwolfach is a town in the district of Ortenau in Baden-Württemberg, Germany. It is the site of the Mathematical Research Institute of Oberwolfach, or Mathematisches Forschungsinstitut Oberwolfach.

Germany Federal parliamentary republic in central-western Europe

Germany, officially the Federal Republic of Germany is a country in Central and Western Europe, lying between the Baltic and North Seas to the north and the Alps, Lake Constance and the High Rhine to the south. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, France to the southwest, and Luxembourg, Belgium and the Netherlands to the west.


In mathematics, Lehrbuch der Topologie 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 algebraic topology, and was the standard reference on this topic for many years.

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