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Nombre de programmes trouvés : 2807
Conférences

le (1h18m37s)

Pourquoi protéger les oiseaux ? Le regard d'une historienne (1/4)

Cette conférence revient sur la protection des oiseaux en l'abordant sous un angle original : celui de l'histoire. On découvrira ainsi les motivations surprenantes des premiers protecteurs du XIXe siècle, le rôle considérable joué par les femmes, les raisons de l'engagement des chasseurs dans la protection des oiseaux, en quoi les Français diffèrent de leurs voisins allemands ou britanniques, etc. Cet éclairage historique est essentiel pour mieux comprendre les enjeux et les difficultés de la protection de la nature d'aujourd'hui.
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Cours magistraux

le (1h59m16s)

Christian Gérard - Introduction to field theory on curved spacetimes (Part 1)

The aim of these lectures is to give an introduction to quantum field theory on curved spacetimes, from the point of view of partial differential equations and microlocal analysis. I will concentrate on free fields and quasi-free states, and say very little on interacting fields or perturbative renormalization. I will start by describing the necessary algebraic background, namely CCR and CAR algebras, and the notion of quasi-free states, with their basic properties and characterizations. I will then introduce the notion of globally hyperbolic spacetimes, and its importance for classical field theory (advanced and retarded fundamental solutions, unique solvability of the ...
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Cours magistraux

le (1h58m32s)

Christian Gérard - Introduction to field theory on curved spacetimes (Part 2)

The aim of these lectures is to give an introduction to quantum field theory on curved spacetimes, from the point of view of partial differential equations and microlocal analysis. I will concentrate on free fields and quasi-free states, and say very little on interacting fields or perturbative renormalization. I will start by describing the necessary algebraic background, namely CCR and CAR algebras, and the notion of quasi-free states, with their basic properties and characterizations. I will then introduce the notion of globally hyperbolic spacetimes, and its importance for classical field theory (advanced and retarded fundamental solutions, unique solvability of the ...
Voir la vidéo
Cours magistraux

le (2h5m33s)

Christian Gérard - Introduction to field theory on curved spacetimes (Part 3)

The aim of these lectures is to give an introduction to quantum field theory on curved spacetimes, from the point of view of partial differential equations and microlocal analysis. I will concentrate on free fields and quasi-free states, and say very little on interacting fields or perturbative renormalization. I will start by describing the necessary algebraic background, namely CCR and CAR algebras, and the notion of quasi-free states, with their basic properties and characterizations. I will then introduce the notion of globally hyperbolic spacetimes, and its importance for classical field theory (advanced and retarded fundamental solutions, unique solvability of the ...
Voir la vidéo
Cours magistraux

le (1h59m53s)

Christian Gérard - Introduction to field theory on curved spacetimes (Part 4)

The aim of these lectures is to give an introduction to quantum field theory on curved spacetimes, from the point of view of partial differential equations and microlocal analysis. I will concentrate on free fields and quasi-free states, and say very little on interacting fields or perturbative renormalization. I will start by describing the necessary algebraic background, namely CCR and CAR algebras, and the notion of quasi-free states, with their basic properties and characterizations. I will then introduce the notion of globally hyperbolic spacetimes, and its importance for classical field theory (advanced and retarded fundamental solutions, unique solvability of the ...
Voir la vidéo

 
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