02907nam 22003975a 450 991015361450332120121029234500.03-03719-616-510.4171/116(CKB)3710000000962496(CH-001817-3)159-121029(PPN)178156159(EXLCZ)99371000000096249620121029j20121029 fy 0engurnn|mmmmamaatxtrdacontentcrdamediacrrdacarrierTractability of Multivariate Problems[electronic resource] Volume III: Standard Information for Operators /Erich Novak, Henryk WoźniakowskiZuerich, Switzerland European Mathematical Society Publishing House20121 online resource (604 pages)EMS Tracts in Mathematics (ETM)18This three-volume set is a comprehensive study of the tractability of multivariate problems. Volume I covers algorithms using linear information consisting of arbitrary continuous linear functionals. Volumes II and III are devoted to algorithms using standard information consisting of function values. Approximation of linear and selected nonlinear functionals is dealt with in volume II, and linear and selected nonlinear operators are studied in volume III. To a large extent, volume III can be read independently of volumes I and II. The most important example studied in volume III is the approximation of multivariate functions. It turns out that many other linear and some nonlinear problems are closely related to the approximation of multivariate functions. While the lower bounds obtained in volume I for the class of linear information also yield lower bounds for the standard class of function values, new techniques for upper bounds are presented in volume III. One of the main issues here is to verify when the power of standard information is nearly the same as the power of linear information. In particular, for the approximation problem defined over Hilbert spaces, the power of standard and linear information is the same in the randomized and average case (with Gaussian measures) settings, whereas in the worst case setting this is not true. The book is of interest to researchers working in computational mathematics, especially in approximation of high-dimensiona problems. It may be well suited for graduate courses and seminars. The text contains 58 open problems for future research in tractability.Numerical analysisbicsscNumerical analysismscNumerical analysisNumerical analysis65-xxmscNovak Erich56070Woźniakowski Henrykch0018173BOOK9910153614503321Tractability of Multivariate Problems2565018UNINA