00373nam a2200121Ia 4500008004000000020001800040082001500058100004900073245005400122260004100176300001200217650002200229210210b1998 xxu||||| |||| 00| 0 eng d a81 7596 041 8 a515.9 ABLC aABLOWITZ (Mark J) and FOKAS (Athanassios S). aComplex variables: introduction and applications. aNDbCambridge University Pressc1998 axii,647 aComplex variables