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This paper sets out to examine some of Riemann’s papers and notes left by him, in the light of the “philosophical” standpoint expounded in his writings on . There is some evidence that many of Riemann’s works, including his of 1854 on the foundations of geometry, may have sprung from his attempts to find a unified explanation for natural phenomena, on the basis of his model of the ether.
Levi-Civita made important contributions to hydrodynamics: he solved D’Alembert’s paradox, introduced the “wake hypothesis”, deduced the general integral of any plane motion involving a wake, and gave a rigorous proof of the existence of the irrotational wave in a canal of finite depth. In this paper, we investigate Levi-Civita’s results in this area, and connect them to the methods of the new theory of integral equations. Finally, we give some information on Levi-Civita’s students. In our paper,...
Tullio Levi-Civita (1873-1941) è stato uno dei più importanti matematici italiani della prima parte del ventesimo secolo e ha contribuito in modo significativo a numerose discipline in campo matematico e fisico. Inoltre, egli ha partecipato alla vita sociale e politica del suo tempo e fu vittima delle severe persecuzioni politiche e razziali del periodo fascista. Egli tentò in più occasioni, e talvolta con successo, di aiutare colleghi e studenti che erano vittime dell'antisemitismo sia in Italia...
In Italia, il decennio 1914-1924 è un periodo di grandi cambiamenti, in cui si succedono la polemica sull'intervento nella prima guerra mondiale (1914-1915), la guerra stessa (1915-1918), le grandi tensioni sociali del dopoguerra e l'inizio del fascismo. La comunità matematica è certamente coinvolta in queste vicissitudini. La maggior parte dei matematici italiani si schiera a favore dell'intervento negli anni 1914-1915, molti sono coloro che successivamente si arruolano volontari nell'esercito...
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