영어에서 Hopf 을 사용하는 예와 한국어로 번역
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By good luck, moreover, my new methods were sufficiently powerful to answer one of the classical problems of my subject, that proposed by H Hopf in 1935.
He was able to obtain some papers through Hopf who was at this time in Zurich but much of Leray's work was done independently of the developments which had taken place in the subject.
Hopf continued to visit his parents in Breslau up until 1939.
In 1942 Hopf was drafted to work in the German Aeronautical Institute.
He defined what is now known as the'Hopf invariant' in 1931.
With the end of World War II Hopf was able to help his German friends again.
Schmidt's interest in topology influenced Hopf and, in 1929, he was an examiner of Hopf 's doctoral thesis.
He was the appointed as an Assistant to Plancherel while he worked for his doctorate under Hopf.
At Heidelberg Hopf took courses in philosophy
Seminars were organised in Berlin in 1925 to study his work and participants included Brauer, Hopf and Reidemeister.
Hopf replied to the approach of the ETH in Zurich indicating that he would accept a formal offer.
Heinz Hopf, Plancherel, Pólya, Bernays.
In 1920 Hopf went to study for his doctorate at the University of Berlin where Schmidt was now teaching.
In fact before the joint work with Hopf appeared in print,
Hopf was never forgiven by many people for his moving to Germany in 1936, where the Nazi party was already in power.
Letters from colleagues such as Carathéodory, Tietze, Hopf and Perron told of many colleagues who Süss had saved from political persecution.
Reidemeister, Hopf, Aleksandrov, Klein,
In 1936, at the end of the MIT contract, Hopf received an offer of full professorship in the University of Leipzig.
In 1940 Hopf was on the list of the invited lecturers to the International Congress of Mathematicians to be held in Cambridge, Massachusetts.
In 1944, one year before the end of World War II, Hopf was appointed to a professorship at the University of Munich.