999 resultados para Roberto Schwarz
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Ponencia publicada en Actas del 8º Congreso Internacional de Historia de la Arquitectura Española, celebrado en Pamplona del 2 al 4 de mayo de 2012.
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En esta obra se recoge el discurso que pronunció D. Roberto Fernández de Caleya al ser nombrado miembro de la Academia de Ingeniería y la contestación de Martín Pereda, donde recuerda y analiza la trayectoria vital y académica del nuevo académico.
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Precede al tít.: "Iesus, Maria, Ioseph, Ioachin y Anna, San Francisco"
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This is an account of some aspects of the geometry of Kahler affine metrics based on considering them as smooth metric measure spaces and applying the comparison geometry of Bakry-Emery Ricci tensors. Such techniques yield a version for Kahler affine metrics of Yau s Schwarz lemma for volume forms. By a theorem of Cheng and Yau, there is a canonical Kahler affine Einstein metric on a proper convex domain, and the Schwarz lemma gives a direct proof of its uniqueness up to homothety. The potential for this metric is a function canonically associated to the cone, characterized by the property that its level sets are hyperbolic affine spheres foliating the cone. It is shown that for an n -dimensional cone, a rescaling of the canonical potential is an n -normal barrier function in the sense of interior point methods for conic programming. It is explained also how to construct from the canonical potential Monge-Ampère metrics of both Riemannian and Lorentzian signatures, and a mean curvature zero conical Lagrangian submanifold of the flat para-Kahler space.
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Buscando una relativa grandeza. El uso del arco en tres proyectos de Roberto Venturi
