1 40 1 https://archives.ihes.fr/files/original/59ae0010c26f37e7c164251224abff34.pdf 84f5fdc744859905ed2d2c4266630f6e 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/1964-1989/P_85_68/P_85_68.pdf OCR Oui Location The location of the interview Bures-sur-Yvette Persons Mentioned STENO HAU WEISS HESSEL BRAVAIS SCHONFLIES FEDOROV VON LAUE DE BROGLIE JANNER SCHECHTMAN BLECH GRATIAS CAHN EULER FOURIER DIRICHLET MINKOWSKI DELONE WIGENR SETIZ BRILLOUIN WANG KNUTH ROBINSON HAMMAN DE BRUIGN GRATIAS PENROSE MAC KAY FRAMER LEVINE STEINHART DUNEAU KATZ KUO JENSEN FIBONACCI RUELLE BOHR 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_85_68.pdf Format The file format, physical medium, or dimensions of the resource A4 8 f. Title A name given to the resource What is a Crystal ? Creator An entity primarily responsible for making the resource MICHEL Description An account of the resource Abstract : An historical survey of our knowledge of crystal structure and of the mathematical problem of paving space with one or a few types of stones show that a crystal has not necessarily a translation lattice. The recently discovered crystals of alloys Al with 14% Mn have an ecosahedral symetry (incompatible qith translation lattice). Their electron micrographs show a structure similar to a Penrose tiling. It seems that long range order characterizing crystals can be obtained from projection of a thin slab of genuine crystal in higher dimension so that crystal physical properties can be described by quasi-periodic functions (as generalizing periodic ones) or may be almost periodic functions. Subject The topic of the resource CRISTAUX MATHEMATIQUES PAVAGE FONCTIONS Date A point or period of time associated with an event in the lifecycle of the resource 12/1985 Type The nature or genre of the resource TEXTE PREPUBLICATION Source A related resource from which the described resource is derived P/85/68 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 1985 Rights Holder A person or organization owning or managing rights over the resource. IHES MICHEL 1985 BLECH BOHR BRAVAIS BRILLOUIN CAHN CRISTAUX DE BROGLIE DE BRUIGN DELONE DIRICHLET DUNEAU EN EULER FEDOROV FIBONACCI FONCTIONS FOURIER FRAMER GRATIAS HAMMAN HAU HESSEL JANNER JENSEN KATZ KNUTH KUO LEVINE MAC KAY MATHEMATIQUES MICHEL MINKOWSKI PAVAGE PENROSE PREPUBLICATION ROBINSON RUELLE SCHECHTMAN SCHONFLIES SETIZ STEINHART STENO VON LAUE WANG WEISS WIGENR