{"product_id":"invariant-subspaces-of-normal-like-operators-von-kulwinder-singh-parmar","title":"Invariant Subspaces Of Normal - Like Operators","description":"\u003cp\u003eThere is an outstanding problem in operator theory, the so-called, INVARIANT SUBSPACE PROBLEM: Given a complex Banach space X, which operators on X have non-trivial closed invariant subspaces? This problem has been open for more than half a century. In spite of momentous efforts by functional analysts, the problem continues to elude them even today. Until fairly recently, it was not known whether there was any operator T without a non-trivial closed invariant subspace.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9786139868674\"\u003e\u003ch3\u003e\u003c\/h3\u003e\u003c\/div\u003e","brand":"Libri","offers":[{"title":"Softcover - 9786139868674","offer_id":39464409727069,"sku":"9786139868674","price":39.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/ef17e25a-f3e1-4e32-9e43-5976a107d0b6.jpg?v=1773386978","url":"https:\/\/shop.autorenwelt.de\/products\/invariant-subspaces-of-normal-like-operators-von-kulwinder-singh-parmar","provider":"Autorenwelt Shop","version":"1.0","type":"link"}