1 40 1 https://omeka.ihes.fr/files/original/dc87f57c20b39c844ea96f60353621cf.pdf 625ed5ea7767b371f30555ecfa1821e9 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Michel, Louis Description An account of the resource Les prépublications de Louis Michel sont des travaux scientifiques datés entre 1964 et 1999 et témoignent de l’interdisciplinarité et des collaborations entre professeurs et chercheurs invités. Source A related resource from which the described resource is derived P/**/** Language A language of the resource EN, FR Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant 1964-1999 Provenance A statement of any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation. The statement may include a description of any changes successive custodians made to the resource. IHES Rights Holder A person or organization owning or managing rights over the resource. IHES Text A resource consisting primarily of words for reading (letters, dissertatations, articles, archives). Note that facsimiles or images of texts are still of the genre Text Local URL The URL of the local directory containing all assets of the website https://repo-archives.ihes.fr/FONDS_IHES/I_Prepublications/MICHEL/1990-1999/P_90_83/P_90_83.pdf OCR Oui Location The location of the interview Bures-sur-Yvette Persons Mentioned LIE MOHAMED LEACH LAGUERRE BRIOSCHI HALPHEN FORSYTH GALOIS ABEL HEISENBERG BOREL TRESSE PAINLEVE GAMBIER RICCATI Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context P_90_83.pdf Format The file format, physical medium, or dimensions of the resource A4 8 f. Title A name given to the resource Classification of the symmetries of ordinary differential equations Creator An entity primarily responsible for making the resource MICHEL KRAUSE Description An account of the resource Conference given at the XIIIth International Colloquium on Group Theoretical Methods in Physics. Moscow, june 4-9, 1990 Abstract : We present S. Lie's work on the symmetry of ODE (ordinary differential equations) : action of Diff 2(x,y), the Lie algebra of vector fields of the plane x, y, on the set of ODE ; general form of ODE with a given symmetry algebra ; computation of the symmetry algebra of a given equation. The original part of this conference studies the general linear equation of order n>2 (this has also be done independenty by Mohamed and Leach, ref. [9]). We also present in a more precise form the work of Lie on the finite dimensional subalgebras of Diff2. As an application, we classify the symmetries of second order equations. Subject The topic of the resource ALGEBRES DE LIE EQUATIONS DIFFERENTIELLES ORDINAIRES CONGRES ET CONFERENCES Date A point or period of time associated with an event in the lifecycle of the resource 10/1990 Type The nature or genre of the resource TEXTE PREPUBLICATION Source A related resource from which the described resource is derived P/90/83 Publisher An entity responsible for making the resource available IHES Provenance A statement of any changes in ownership and custody of the resource since its creation that are significant for its authenticity, integrity, and interpretation. The statement may include a description of any changes successive custodians made to the resource. IHES Language A language of the resource EN Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant 1990 Rights Holder A person or organization owning or managing rights over the resource. IHES MICHEL KRAUSE 1990 ABEL ALGEBRES DE LIE BOREL BRIOSCHI CONGRES ET CONFERENCES EN EQUATIONS DIFFERENTIELLES ORDINAIRES FORSYTH GALOIS GAMBIER HALPHEN HEISENBERG KRAUSE LAGUERRE LEACH LIE MICHEL MOHAMED PAINLEVE PREPUBLICATION RICCATI TRESSE