00446nam a2200181Ia 4500003000400000005001700004008004100021020001800062040000700080041000800087082002000095100002600115245002600141260004300167300001600210365001300226650002500239OSt20230617110856.0210423s2011    xx            000 0 und d  a9788122402834  cAL  aeng  a530.15 CHAP223  aCHATTOPADHYAY (P K ).  aMathematical physics.  aNew DelhibNew Age Internationalc2011  axii,352bPB  b185cINR  aMathematical Physics