00300nam a2200121 a 450000500170000000800410001704100080005808200110006610000180007724500420009526400300013730000110016720260717091437.0260717s1994    ii            000 0 eng d  aeng04a530.151 aRajput, B. J.10aMathematical physics /cRajput, B. J. 1bPragati Prakashan,c1994.  a982 p.