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Emma Castelnuovo rievoca alcuni momenti della sua vita. Tra i vari temi: Picone e l'Istituto per le Applicazioni del Calcolo, le leggi razziali e il fascismo, la matematica italiana nel secondo dopoguerra, Caccioppoli, l'insegnamento e il ruolo della matematica nella società.
È matematicamente certo. Fate l'ipotesi che voi siate matematici e il vostro partner sia, per esempio, neurochirurgo. Vi presentate a cena, con un gruppo di nuovi amici. Fate quattro chiacchiere e dopo un po' viene fuori che siete un ricercatore in matematica. Un attimo di sconcerto, sguardi di divertito stupore, e poi vi chiedono: «ma perché, cosa c'è da ricercare, in matematica?» Guardandosi tra loro, insistono: «non è già tutto scoperto?» E sicuramente almeno uno affermerà, con orgoglio: «io,...
In this paper we introduce a new class of numerical schemes for the incompressible Navier-Stokes equations, which are
inspired by the theory of discrete kinetic schemes for compressible fluids. For these approximations it is possible to give
a stability condition, based on a discrete velocities version of the Boltzmann H-theorem. Numerical tests are performed to
investigate their convergence and accuracy.
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