Hasse, Markus _ Functional analysis an elementary introduction - Indian ed. - Providence, RI AMS 2019 - xviii, 372 p. PB 24 cm. - Graduate studies in mathematics Vol 156 . Includes index ISBN: 9781470454739 Subjects--Personal Names: _ Subjects--Uniform Titles: MathematicsFunctional analysis Dewey Class. No.: 515.7 / HAA