《应用泛函分析(靠前卷)(英文版)》内容简介：Moreprecisely,by（i）,Imeanasystematicpresentationofthematerialgovernedbythedesireformathematicalperfectionandcompletenessoftheresults.Incontrastto（i）,approach（ii）startsoutfromthequestionWhatarethemostimportantapplications？andthentriestoanswerthisquestionasquicklyaspossible.Here,onewalksdirectlyonthemainroadanddoesnotwanderintoalltheniceandinterestingsideroads.Thepresentbookisbasedonthesecondapproach.Itisaddressedtoundergraduateandbeginninggraduatestudentsofmathematics,physics,andengineeringwhowanttolearnhowfunctionalanalysiselegantlysolvesmahematicalproblemsthatarerelatedtoourrealworldazldthathaveplayedanimportantroleinthehistoryofmathematics.Thereadershouldsensethatthetheoryisbeingdeveloped,notsimplyforitsownsake,butfortheeffectivesolutionofconcreteproblems.