00513nam a2200145Ia 4500020001800000082001700018100002500035245002500060260004400085650002500129942000700154999001500161952008500176952010600261  a9788122402834  a530.15 CHA/M  aChattopadhyay, P. K  0aMathematical Physics  bNew Age InternationalaNew Delhi c2009  aMathematical Physics  cBK  c4822d4822  001040708PHYaGBCTLbGBCTLcF24d2021-01-13g185.00o530.15 CHA/M p45340yBK  00104070aGBCTLbGBCTLcF24d2026-06-05g185.00l0o530.15 CHA/Mp45341r2026-06-05w2026-06-05yBK