Differential operators of mathematical physics :
Hellwig, Gunter,
Differential operators of mathematical physics : an introduction / translated from the German by Birgitta Hellwig. - Reading, Mass. : Addison-Wesley Pub., 1967. - vii, 296 p. ;
3716
Differential equations, Partial.
515.35 / Di
Differential operators of mathematical physics : an introduction / translated from the German by Birgitta Hellwig. - Reading, Mass. : Addison-Wesley Pub., 1967. - vii, 296 p. ;
3716
Differential equations, Partial.
515.35 / Di