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[null,"1.","Record Nr.",null,"UNINA9910416486303321"]
[null,null,"Autore",null,"Bailly-Maître Marie-Christine"]
[null,null,"Titolo",null,"Mines et pouvoir au Moyen Âge / / Marie-Christine Bailly-Maitre, Jean-Michel Poisson"]
[null,null,"Pubbl/distr/stampa",null,"Lyon, : Presses universitaires de Lyon, 2020"]
[null,null,"ISBN",null,"2-7297-1098-1"]
[null,null,"Descrizione fisica",null,"1 online resource (214 p.)"]
[null,null,"Soggetti",null,"History"]
[{"$nulls":4},"Medieval &amp; Renaissance Studies"]
[{"$nulls":4},"Moyen Âge"]
[{"$nulls":4},"industrie minière"]
[{"$nulls":4},"mine"]
[{"$nulls":4},"histoire économique"]
[{"$nulls":4},"actes de congrès"]
[null,null,"Lingua di pubblicazione",null,"Francese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Sommario/riassunto","Au Moyen Âge, c’est entre le xie et le xiiie siècle que l’exploitation et l’utilisation des métaux, et plus particulièrement celle de l’argent, se retrouvent sous la mainmise seigneuriale. L’intérêt des maîtres du ban pour l’exploitation des ressources naturelles s’est en effet manifesté de façon prépondérante dans le secteur des minerais métalliques, en relation étroite avec les frappes monétaires notamment. L’étude de la question minière pour cette période met à contribution plusieurs types de sources écrites et archéologiques. En ce qui concerne les textes, si les chartes sont plutôt rares et parfois sujettes à caution, la documentation sérielle du bas Moyen Âge offre un ensemble copieux et encore en bonne part sous-exploité, tout particulièrement les comptabilités châtelaines. Mais c’est sans doute de l’archéologie extensive et de terrain que l’on peut attendre le plus de résultats nouveaux. D’une part, par l’organisation de vastes prospections dans des zones de production minière attestées par la géologie mais aussi par des indices d’exploitation ancienne ou plus récente, d’autre part, par la fouille de sites miniers qui s’est concentrée jusqu’alors sur un petit nombre d’exemples étudiés en profondeur mais n’a concerné qu’"]
[{"$nulls":4},"une faible partie des sites recensés.  Cet ouvrage rassemble les contributions présentées lors de la table ronde organisée à Lyon le 15 mai 2002 pour faire le point sur un ensemble de recherches portant sur différents espaces européens : Dauphiné, Savoie, Provence, Piémont, Toscane, Andalousie et Bohème."]
[null,"2.","Record Nr.",null,"UNINA9910781751803321"]
[null,null,"Autore",null,"Knauer U. <1942->"]
[null,null,"Titolo",null,"Algebraic graph theory [[electronic resource] ] : morphisms, monoids, and matrices / / by Ulrich Knauer"]
[null,null,"Pubbl/distr/stampa",null,"Berlin ; ; Boston, : De Gruyter, c2011"]
[null,null,"ISBN",null,"1-283-40044-8"]
[{"$nulls":4},"9786613400444"]
[{"$nulls":4},"3-11-025509-X"]
[null,null,"Descrizione fisica",null,"1 online resource (324 p.)"]
[null,null,"Collana",null,"De Gruyter studies in mathematics ; ; 41"]
[null,null,"Classificazione",null,"SK 890"]
[null,null,"Disciplina",null,"511/.5"]
[null,null,"Soggetti",null,"Graph theory"]
[{"$nulls":4},"Algebraic topology"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Frontmatter -- Preface -- Contents -- Chapter 1. Directed and undirected graphs -- Chapter 2. Graphs and matrices -- Chapter 3. Categories and functors -- Chapter 4. Binary graph operations -- Chapter 5. Line graph and other unary graph operations -- Chapter 6. Graphs and vector spaces -- Chapter 7. Graphs, groups and monoids -- Chapter 8. The characteristic polynomial of graphs -- Chapter 9. Graphs and monoids -- Chapter 10. Compositions, unretractivities and monoids -- Chapter 11. Cayley graphs of semigroups -- Chapter 12. Vertex transitive Cayley graphs -- Chapter 13. Embeddings of Cayley graphs - genus of semigroups -- Bibliography -- Index -- Index of symbols"]
[null,null,null,"Sommario/riassunto","Graph models are extremely useful for almost all applications and applicators as they play an important role as structuring tools. They allow to model net structures - like roads, computers, telephones - instances of abstract data structures - like lists, stacks, trees - and functional or object oriented programming. In turn, graphs are models for mathematical objects, like categories and functors. This highly self-contained book about algebraic graph theory is written with a view to keep the lively and unconventional atmosphere of a spoken text to communicate the enthusiasm the author feels about this subject. The focus is on homomorphisms and endomorphisms, matrices and eigenvalues. It ends with a challenging chapter on the topological question of embeddability of Cayley graphs on surfaces."]