LEADER 03647nam 22006015 450 001 9910338249603321 005 20200701042303.0 010 $a3-030-10819-8 024 7 $a10.1007/978-3-030-10819-9 035 $a(CKB)4100000008217443 035 $a(MiAaPQ)EBC5776246 035 $a(DE-He213)978-3-030-10819-9 035 $a(PPN)236523112 035 $a(EXLCZ)994100000008217443 100 $a20190517d2019 u| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aNon-Self-Adjoint Differential Operators, Spectral Asymptotics and Random Perturbations /$fby Johannes Sjöstrand 205 $a1st ed. 2019. 210 1$aCham :$cSpringer International Publishing :$cImprint: Birkhäuser,$d2019. 215 $a1 online resource (496 pages) $cillustrations 225 1 $aPseudo-Differential Operators, Theory and Applications,$x2297-0355 ;$v14 311 $a3-030-10818-X 330 $aThe asymptotic distribution of eigenvalues of self-adjoint differential operators in the high-energy limit, or the semi-classical limit, is a classical subject going back to H. Weyl of more than a century ago. In the last decades there has been a renewed interest in non-self-adjoint differential operators which have many subtle properties such as instability under small perturbations. Quite remarkably, when adding small random perturbations to such operators, the eigenvalues tend to distribute according to Weyl's law (quite differently from the distribution for the unperturbed operators in analytic cases). A first result in this direction was obtained by M. Hager in her thesis of 2005. Since then, further general results have been obtained, which are the main subject of the present book. Additional themes from the theory of non-self-adjoint operators are also treated. The methods are very much based on microlocal analysis and especially on pseudodifferential operators. The reader will find a broad field with plenty of open problems. 410 0$aPseudo-Differential Operators, Theory and Applications,$x2297-0355 ;$v14 606 $aFunctions of complex variables 606 $aDifferential equations 606 $aDifferential equations, Partial 606 $aOperator theory 606 $aFunctions of a Complex Variable$3https://scigraph.springernature.com/ontologies/product-market-codes/M12074 606 $aSeveral Complex Variables and Analytic Spaces$3https://scigraph.springernature.com/ontologies/product-market-codes/M12198 606 $aOrdinary Differential Equations$3https://scigraph.springernature.com/ontologies/product-market-codes/M12147 606 $aPartial Differential Equations$3https://scigraph.springernature.com/ontologies/product-market-codes/M12155 606 $aOperator Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/M12139 615 0$aFunctions of complex variables. 615 0$aDifferential equations. 615 0$aDifferential equations, Partial. 615 0$aOperator theory. 615 14$aFunctions of a Complex Variable. 615 24$aSeveral Complex Variables and Analytic Spaces. 615 24$aOrdinary Differential Equations. 615 24$aPartial Differential Equations. 615 24$aOperator Theory. 676 $a515.7246 676 $a515.7246 700 $aSjöstrand$b Johannes$4aut$4http://id.loc.gov/vocabulary/relators/aut$0351203 906 $aBOOK 912 $a9910338249603321 996 $aNon-Self-Adjoint Differential Operators, Spectral Asymptotics and Random Perturbations$91733469 997 $aUNINA