{"product_id":"functional-calculi-9789814415972","title":"Functional Calculi","description":"\u003cp\u003e • Author(s): Bosch Carlos\u003cbr\u003e • Publisher: World Scientific Publishing Company\u003cbr\u003e • Publisher Imprint: World Scientific Publishing Company\u003cbr\u003e • BISAC: Calculus\u003c\/p\u003e\u003cp\u003eA functional calculus is a construction which associates with an operator or a family of operators a homomorphism from a function space into a subspace of continuous linear operators, i.e. a method for defining \"functions of an operator\". Perhaps the most familiar example is based on the spectral theorem for bounded self-adjoint operators on a complex Hilbert space.This book contains an exposition of several such functional calculi. In particular, there is an exposition based on the spectral theorem for bounded, self-adjoint operators, an extension to the case of several commuting self-adjoint operators and an extension to normal operators. The Riesz operational calculus based on the Cauchy integral theorem from complex analysis is also described. Finally, an exposition of a functional calculus due to H. Weyl is given.\u003c\/p\u003e","brand":"World Scientific Publishing Company","offers":[{"title":"Hardcover","offer_id":47571905216663,"sku":"9789814415972","price":9786.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9789814415972.webp?v=1774888467","url":"https:\/\/atlanticbooks.com\/products\/functional-calculi-9789814415972","provider":"Atlantic Books","version":"1.0","type":"link"}