Conférences
le (52m13s)
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Conférences
le (1h4m1s)
J.-V. Pereira - Algebraic leaves of codimension one foliations (Part 4)
This mini-course will review old and new results about algebraic leaves of codimension one foliations on projective manifolds. I will discuss some of the following topics: Darboux's Theorem and generalizations; compact leaves; holonomy of an algebraic leaf; and effective algebraic integration (a.k.a. Poincaré and Painlevé problems). Voir la vidéo
Entretiens
le (51m6s)
Bachir Diagne - Philosopher en Islam
... la philosophie à l’Université Cheikh Anta Diop de Dakar, Sénégal, puis huit ans à l’Université Northwestern, à Chicago. Ses recherches et ses enseignements portent sur l’histoire de la logique mathématique, l’histoire de la philosophie, la... Voir la vidéo
Entretiens
le (5m52s)
#162 - Svetla Koleva - Les sciences sociales entre trois mondes. Le cas des chercheurs africains formés à l’Est et à l’Ouest dans les années 1960-1990. Histoires, savoirs, parcours.
...https://www.iea-nantes.fr/fr/chercheurs/koleva-svetla_421 Projet de recherche : Les sciences sociales entre trois mondes. Le cas des chercheurs africains formés à l’Est et à l’Ouest dans les années 1960-1990. Histoires, savoirs, parcours... Voir la vidéo
Vidéocours
le (8m32s)
The Carbon Cycle- Philippe Bousquet
What are the links between carbon and climate? How does this evolve at the scale of a human life? What are the main factors that govern the CO2 sinks? What will happen to CO2 sinks over the next century? And what about methane? Voir la vidéo
Conférences
le (1h6m27s)
C. Araujo - Foliations and birational geometry (Part 1)
In the last few decades, much progress has been made in birational algebraic geometry. The general viewpoint is that complex projective manifolds should be classified according to the behavior of their canonical class. As a result of the minimal model program (MMP), every complex projective manifold can be built up from 3 classes of (possibly singular) projective varieties, namely, varieties $X$ for which $K_X$ satisfies $K_X0$. Projective manifolds $X$ whose anti-canonical class $-K_X$ is ample are called Fano manifolds. Techniques ... Voir la vidéo
Conférences
le (57m49s)
E. Amerik - On the characteristic foliation
...Let X be a holomorphic symplectic manifold and D a smooth hypersurface in X. Then the restriction of the symplectic form on D has one-dimensional kernel at each point. This distribution is called the characteristic foliation. I shall survey... Voir la vidéo
Conférences
le (1h5m16s)
J. Demailly - Existence of logarithmic and orbifold jet differentials
Given a projective algebraic orbifold, one can define associated logarithmic and orbifold jet bundles. These bundles describe the algebraic differential operators that act on germs of curves satisfying ad hoc ramification conditions. Holomorphic Morse inequalities can be used to derive precise cohomology estimates and, in particular, lower bounds for the dimensions of spaces of global jet differentials. A striking consequence is that, under suitable geometric hypotheses, the corresponding entire curves must satisfy nontrivial algebraic differential equations. These results extend those obtained by ... Voir la vidéo
Conférences
le (1h1m35s)
L. Meersseman - Kuranishi and Teichmüller
Let X be a compact complex manifold. The Kuranishi space of X is an analytic space which encodes every small deformation of X. The Teichmüller space is a topological space formed by the classes of compact complex manifolds diffeomorphic to X up to biholomorphisms smoothly isotopic to the identity. F. Catanese asked when these two spaces are locally homeomorphic. Unfortunatly, this almost never occurs. I will reformulate this question replacing these two spaces with stacks. I will then show that, if X is Kähler, ... Voir la vidéo
Cours magistraux
le (57m29s)
