00425nam a22001577a 450000500170000000800410001702000270005804000090008504100120009408200150010610000170012124500650013826000390020330000080024265000170025020260130132009.0260130b        |||||||| |||| 00| 0 eng d  a9781470437794c2710.00  aMAIN  aEnglish  a512.5bSIM  aSimon, Barry  aOperator Theoryb: A Comprehensive Course in Analysis part 4  aHyderabad bUniversity Pressc2023  a747  aMathematics