6 сент. 2014 г.

Зимняя Русско - Финская война 39-40 годов



и Сибелиус


 


и   Рольф Неванлинна


At 13 they went to orchestra school and became accomplished musicians - Frithiof on the 'cello and Rolf on the violin. Through free tickets from the orchestra school they got to know and love the music of the great composers, Bach, Beethoven, Brahms, Schubert, Schumann, Chopin and Liszt, as well as the early symphonies of Sibelius (1865-1957), conducted by the composer. Rolf first met Sibelius' music in 1907, when he heard his Third Symphony. Although later he met Hilbert, Einstein, Thomas Mann and other famous people, Rolf said that none had had such a strong effect on him as Sibelius. The boys played trios with their mother and their love of music - in particular of chamber music - lasted all their lives.

The main results of Nevanlinna theory appeared in the 100 page paper Zur Theorie der meromorphen Funktionen in 1925.




His first visit abroad was to belatedly accept Edmund Landau's invitation to go to Göttingen which he did in 1924. In addition to Landau he met Hilbert, Courant and Emmy Noether in Göttingen and, while in Germany he also met Pavel Sergeevich Aleksandrov, Pavel Samuilovich Urysohn, and Constantin Carathéodory in Munich. Later visits included one to Paris in 1926 where he met Hadamard, Montel and he also visited André Bloch in a mental hospital. He met A Speiser in Zurich when he visited there in 1928 and became interested in classification problems of Riemann surfaces. Two years later Nevanlinna was offered Weyl's chair after he had left Zurich to take up the chair at Göttingen, but Nevanlinna refused the chair.

и  Lars Alhfors

 It was through the second half of the 1920s that Lars Ahlfors studied with Nevanlinna, obtaining his doctorate in 1930, and he had accompanied his thesis advisor on the trip to Zurich. Ahlfors' proof of the Denjoy Conjecture, which led to him being awarded a Fields Medal in 1936, followed suggestions made by Nevanlinna while in Zurich.

The geometric ideas marked a new element in Nevanlinna's research and is evident in papers he published in the early 1930s.

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гг.  russian media: беССмысленность и беспощадность.