00898nam0-22003011i-450-990001266560403321000126656FED01000126656(Aleph)000126656FED0100012665620000920d1964----km-y0itay50------baengPositive Solutions of Operator Equationder Krasnosel'skiiGroningenNoordhoff1964translated from the russian by R. Flaherty ed. by Leo F. BoronAnalisi funzionaleTeoria degli operatoriKrasnoselʹskij,Mark Aleksandrovič<1920- >534681ITUNINARICAUNIMARCBK9900012665604033216-H-3213388MA1MA146-XX47-XXPositive Solutions of Operator Equation1498891UNINAING01