00519nam a2200133Ia 4500008004100000082002100041100002300062245009100085260003700176300002000213490004000233500007800273700003400351260225b        |||||||| |||| 00| 0 eng d  a515.35bSo697.PD  aSommerfeld, Arnold  aPartial differential equation in physics; lectures on the theoretical physics; v. 6b/  aNew York:bAcademic Press,c1967  axi, 335p. Index  aPure and Applied Mathematicsv v. 1  a"Lectures on Theoretical Physics, v. 6". "Translated by Ernst G. Straus".  aStraus, Ernst G.etranslator.