{"product_id":"9780486318653","title":"Theory of Linear Operators in Hilbert Space","description":"This classic textbook introduces linear operators in Hilbert space, and presents in detail the geometry of Hilbert space and the spectral theory of unitary and self-adjoint operators. It is directed to students at graduate and advanced undergraduate levels, but should prove invaluable for every mathematician and physicist. 1961, 1963 edition.","brand":"Dover Publications","offers":[{"title":"Default Title","offer_id":47106532573424,"sku":"9780486318653","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/211056576.jpg?v=1751658512","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/9780486318653","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}