Nilpotency and Quasinilpotency in Banach Algrbras 2026-02-15T17:42:44+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Al-Moajil, Abdullah Hamad (University of Oregon, Department of Mathematics, 1973)