LEADER 03300nam 22004935 450 001 9910300137603321 005 20200701040458.0 010 $a3-319-95264-1 024 7 $a10.1007/978-3-319-95264-2 035 $a(CKB)4100000006520002 035 $a(MiAaPQ)EBC5511126 035 $a(DE-He213)978-3-319-95264-2 035 $z(PPN)258847387 035 $a(PPN)230539092 035 $a(EXLCZ)994100000006520002 100 $a20180908d2018 u| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aVariational Source Conditions, Quadratic Inverse Problems, Sparsity Promoting Regularization $eNew Results in Modern Theory of Inverse Problems and an Application in Laser Optics /$fby Jens Flemming 205 $a1st ed. 2018. 210 1$aCham :$cSpringer International Publishing :$cImprint: Birkhäuser,$d2018. 215 $a1 online resource (180 pages) 225 1 $aFrontiers in Mathematics,$x1660-8046 311 $a3-319-95263-3 327 $aInverse problems, ill-posedness, regularization -- Variational source conditions yield convergence rates -- Existence of variational source conditions -- What are quadratic inverse problems? -- Tikhonov regularization -- Regularization by decomposition -- Variational source conditions -- Aren?t all questions answered? -- Sparsity and 1-regularization -- Ill-posedness in the l1-setting -- Convergence rates. 330 $aThe book collects and contributes new results on the theory and practice of ill-posed inverse problems. Different notions of ill-posedness in Banach spaces for linear and nonlinear inverse problems are discussed not only in standard settings but also in situations up to now not covered by the literature. Especially, ill-posedness of linear operators with uncomplemented null spaces is examined. Tools for convergence rate analysis of regularization methods are extended to a wider field of applicability. It is shown that the tool known as variational source condition always yields convergence rate results. A theory for nonlinear inverse problems with quadratic structure is developed as well as corresponding regularization methods. The new methods are applied to a difficult inverse problem from laser optics. Sparsity promoting regularization is examined in detail from a Banach space point of view. Extensive convergence analysis reveals new insights into the behavior of Tikhonov-type regularization with sparsity enforcing penalty. 410 0$aFrontiers in Mathematics,$x1660-8046 606 $aNumerical analysis 606 $aOperator theory 606 $aNumerical Analysis$3https://scigraph.springernature.com/ontologies/product-market-codes/M14050 606 $aOperator Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/M12139 615 0$aNumerical analysis. 615 0$aOperator theory. 615 14$aNumerical Analysis. 615 24$aOperator Theory. 676 $a515.357 700 $aFlemming$b Jens$4aut$4http://id.loc.gov/vocabulary/relators/aut$0767935 906 $aBOOK 912 $a9910300137603321 996 $aVariational Source Conditions, Quadratic Inverse Problems, Sparsity Promoting Regularization$91563829 997 $aUNINA