Sommerfeld, Arnold Partial differential equations in physics / by Arnold Sommerfeld ; translated by Ernst G. Straus. - 1a ed. - New York : Academic press, 1949 - x, 335 p. : 20 cm. - (Lectures on theoretical physics ; ) V. VI . Incluye apéndice e índice Subjects--Topical Terms: Física matemática Ecuaciones diferenciales LC Class. No.: QC20.7.D5 / S66 1949