Author: Joseph Liouville, Jean Marie Duhamel, Gabriel Lamé
Title: Liouville: MEMOIRE SUR L'EQUATION DE RICCATI. Duhamel: MEMOIRE SUR LA METHODE GENERALE RELATIVE AU MOUVEMENT DE LA CHALEUR DANS LES CORPS SOLIDES... Lamé: SUR LA PROPAGATION DE LA CHALEUR DANS LES POLYEDRES... (In: Journal de l'Ecole Polytechnique, Vingt-deuxieme Cahier, Tome XIV). .
Description: Paris, Imprimerie Royale, 1833. Un volume (21x27 cm) di (4)-251-(5) pagine, con due tavole incise ripiegate ft. In barbe; bruniture sparse. In lingua francese. Brossura coeva d'attesa. Da notare l'E.O. dell'importante saggio di Duhamel: “In 1833 Duhamel published a solution for the temperature distribution in a solid with variable boundary temperature. He was considering the situations in which the surface radiates into a medium and in which the temperature of the medium changes according to a known law. His object was to reduce these cases to those of a surface at constant temperature. His method, based on the principle of superposition, generalized a solution by Fourier and substituted, in place of the original temperature function, the sum of a constant temperature term and an integral term (an integral of the rate of change of the temperature function).This method generalizes to Duhamel’s principle” (Encyclopedia.com).

Keywords: SCIENZE, FISICA, MECCANICA