00372nam a2200157 a 450000500170000002000180001708200150003510000240005024500270007426000280010130000280012960000080015763000370016585600060020285600060020820251219160004.0  a9783319915111  a515.7bOVC  aOvchinnikov, Sergei  aFunctional analysisb_  aSwiterlandbSpringerc_  axii, 205 p.b22 cm.bPB  bc_  aMathematics, Functional analysis  f_  a_