9,509 research outputs found
Koenig e l'industrial design
No full textIl saggio affronta come si è organizzato nel tempo, fin dalla fine degli anni Cinquanta, l’interesse culturale per l’industrial design da parte di Giovanni Klaus Koenig: interesse che ha definito nel tempo le sue scelte accademiche, la sua didattica universitaria, le sue scelte di progettista nel settore dei mezzi di trasporto su rotaia, la sua ricca attività di studioso e di critico. Il ruolo, incisivo e innovativo, che Koenig ha svolto in questo settore è inserito nel dibattito nazionale, di cui è stato vivace esponente.The essay deals with how Giovanni Klaus Koenig's cultural interest in industrial design has evolved over time, since the end of the 1950s: an interest that has defined his academic choices, his academic teaching, his choices as a designer in the rail transport sector and his rich activity as a scholar and critic. The powerful and innovative role that Koenig has played in this sector is very much entangled with the national debate, of which he has been a lively contributor
Giovanni Klaus Koenig, un moderno Odisseo
No full textIl saggio affronta la biografia di Giovanni Klaus Koenig e ricostruisce la sua figura di studioso, di docente e di progettista. Analizza e contestualizza l’indirizzo della sua carriera accademica, i suoi interessi disciplinari, le sue scelte culturali di ricercatore, di progettista in campo architettonico, di designer di mezzi di trasporto su rotaia, di storico e di critico tanto di architettura contemporanea quanto di industrial design..The essay deals with Giovanni Klaus Koenig’s biography and reconstructs his figure as a scholar, as a teacher and as a designer. It examines and contextualizes the direction of his academic career, his disciplinary interests, his cultural choices as a researcher, as a designer in the architectural field, as a designer of rail means of transport and as an historian and critic of both contemporary architecture and industrial design
Rigidity in topology C^0 of the Poisson bracket for Tonelli Hamiltonians
No full textInternational audienceWe prove the following rigidity result for the Tonelli Hamiltonians. Let T * M be the cotangent bundle of a closed manifold M endowed with its usual symplectic form. Let (F_n) be a sequence of Tonelli Hamiltonians that C^0 converges on the compact subsets to a Tonelli Hamiltonian F. Let (G_n) be a sequence of Hamiltonians that that C^0 converges on the compact subsets to a Hamiltonian G. We assume that the sequence of the Poisson brackets ({F_n , G_n }) C^0-converges on the compact subsets to a C^1 function H. Then H = {F, G}
Tonelli Hamiltonians without conjugate points and integrability
No full text37 pagesWe prove that all the Tonelli Hamiltonians defined on the cotangent bundle T^*\T^n of the -dimensional torus that have no conjugate points are integrable, i.e. T^*\T^n is foliated by a family \Fc of invariant Lagrangian graphs. Assuming that the Hamiltonian is , we prove that there exists a subset \Gc of \Fc such that the dynamics restricted to every element of \Gc is strictly ergodic. Moreover, we prove that the Lyapunov exponents of every integrable Tonelli Hamiltonian are zero and deduce that the metric and topological entropies vanish
Tonelli Hamiltonians without conjugate points and integrability
No full text37 pagesWe prove that all the Tonelli Hamiltonians defined on the cotangent bundle T^*\T^n of the -dimensional torus that have no conjugate points are integrable, i.e. T^*\T^n is foliated by a family \Fc of invariant Lagrangian graphs. Assuming that the Hamiltonian is , we prove that there exists a subset \Gc of \Fc such that the dynamics restricted to every element of \Gc is strictly ergodic. Moreover, we prove that the Lyapunov exponents of every integrable Tonelli Hamiltonian are zero and deduce that the metric and topological entropies vanish
Tonelli Hamiltonians without conjugate points and integrability
No full text37 pagesWe prove that all the Tonelli Hamiltonians defined on the cotangent bundle T^*\T^n of the -dimensional torus that have no conjugate points are integrable, i.e. T^*\T^n is foliated by a family \Fc of invariant Lagrangian graphs. Assuming that the Hamiltonian is , we prove that there exists a subset \Gc of \Fc such that the dynamics restricted to every element of \Gc is strictly ergodic. Moreover, we prove that the Lyapunov exponents of every integrable Tonelli Hamiltonian are zero and deduce that the metric and topological entropies vanish
Decentralizing Theology: The Second Vatican Council and Peter Phan
No full textThis chapter focuses on the decentralization of theology - that is, on the inclusion of Christian traditions rooted outside of the West, within a worldwide community, having as a reference the prophetic vision of the Second Vatican Council. This theme lends itself to an ecclesiological analysis, but I deal with it from a political perspective interested in the complexity of the new challenges of contemporary theology, and also in their social and political consequences. The legitimacy of this perspective is grounded - first of all - in the Christian tradition, which over the course of the history has influenced not only the religious sphere but also avere area of human life, and especially the political. Second, I argue that the solutions and approaches to this issue will be both theological and political, because whenever we face the theological challenges, this will influence the sociopolitical order, whether directly or not. Third, though not pretending to resolve the question of the decanting of theology, I hereby attempt to frame and restate the term of the issues at hand
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