{"product_id":"fourier-analysis-and-approximation-of-roald-m-trigub-9781402023415","title":"Fourier Analysis and Approximation of Functions","description":"In \u003cstrong\u003eFourier Analysis and Approximation of Functions\u003c\/strong\u003e basics of classical Fourier Analysis are given as well as those of approximation by polynomials, splines and entire functions of exponential type. \u003cbr\u003eIn Chapter 1 which has an introductory nature, theorems on convergence, in that or another sense, of integral operators are given. In Chapter 2 basic properties of simple and multiple Fourier series are discussed, while in Chapter 3 those of Fourier integrals are studied. \u003cbr\u003eThe first three chapters as well as partially Chapter 4 and classical Wiener, Bochner, Bernstein, Khintchin, and Beurling theorems in Chapter 6 might be interesting and available to all familiar with fundamentals of integration theory and elements of Complex Analysis and Operator Theory. Applied mathematicians interested in harmonic analysis and\/or numerical methods based on ideas of Approximation Theory are among them. \u003cbr\u003eIn Chapters 6-11 very recent results are sometimes given in certain directions. Many of these results have never appeared as a book or certain consistent part of a book and can be found only in periodics; looking for them in numerous journals might be quite onerous, thus this book may work as a reference source. \u003cbr\u003eThe methods used in the book are those of classical analysis, Fourier Analysis in finite-dimensional Euclidean space Diophantine Analysis, and random choice.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Roald M. Trigub, Eduard S. Belinsky\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 1402023413\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9781402023415\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Springer\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 09\/07\/2004\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 586\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Hardcover\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 2.23lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.21h x 6.14w x 1.31d","brand":"Roald M. Trigub","offers":[{"title":"Hardcover","offer_id":44123415380223,"sku":"9781402023415","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_50185605-3a5f-45e8-846c-9ccd4fc7661f.jpg?v=1687430762","url":"https:\/\/www.whiterainbookhouse.com\/products\/fourier-analysis-and-approximation-of-roald-m-trigub-9781402023415","provider":"WR Book House","version":"1.0","type":"link"}