Por Daniel Barlet (Inst. Élie Cartan, Lorraine).
Abstract: We shall explain how the classical intersection theory of cycles in a complex manifold is generalized to an ambient nearly smooth complex space. A key point is the local moving lemma for cycles in a complex manifold. The new phenomenon is the fact that the intersection multiplicity of two integral cycles may be a rational not integral number in this context.
Por Herwig Hauser (Fakultät für Mathematik, Universität Wien).
Por Marco Silva Mendes (FCUL).
Por César Rodrigo (Academia Militar, CMAF-CIO, CINAMIL).
"A Brief History of Geometry” is a overview of the main historical steps of Geometry, from Euclid to Perelman, via Descartes, Gauss, Riemann, Ricci, Poincaré and Einstein… This conference was given by Jean-Pierre Bourguignon (IHES, France) at the Academy of Sciences of Lisbon the November 2nd, 2017, at the invitation of the Centro de Matemática, Aplicações Fundamentais e Investigação Operacional da Faculdade de Ciências da Universidade de Lisboa, Portugal.
Through works by renowned architects such as Antoni Gaudí, Felix Candela and Oscar Niemeyer, this film intends to show the natural way in which the formulas, the geometry of forms and their concretization are intertwined.
Através de obras de arquitetos de renome como Antoni Gaudí, Felix Candela e Oscar Niemeyer, este filme pretende evidenciar a forma natural como se entrelaçam as fórmulas, a geometria das formas e a sua concretização.
O vídeo insere-se no projeto Geometria Intuitiva e Interativa (GI2). Mais informações em http://www.gi2.pt/ .
Por Jean-Pierre Bourguignon (IHES, France and Academia das Ciências de Lisboa).
Por Pedro Marques (Universidade de Évora).
Por Susana Ferreira (Instituto Politécnico de Leiria).
