00668nam a2200205 a 450000500170000000800410001702000150005804100080007308200110008110000280009224500520012026400480017230000320022050000190025265000250027165000220029694200070031899900170032595201200034220260717091610.0260717s1993    ii            000 0 eng d  a0706996836  aeng04a530.151 aGupta, B. D., 1949-201110aMathematical physics /cGupta, B. D., 1949-2011 1aNew Delhi :bVikas Publishing House,c1993.  axv, Sev. p. : ill. ; 24 cm.  aIncludes index 4aMathematical physics 4aFisica matematica  cBK  c35635d35635  001040708DCaBKBCLbBKBCLd1997-10-07g225.00l0o530.15 GUPp35736r2026-07-17 09:16:10v225.00w2026-07-17yBK