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Nombre de programmes trouvés : 116
Cours magistraux

le (1h4m38s)

P. Salberger - Quantitative aspects of rational points on algebraic varieties (part1)

Let X be a subvariety of Pn defined over a number field and N(B) be the number of rational points of height at most B on X. There are then general conjectures of Manin on the asymptotic behaviour of N(B) when B goes to infinity. These conjectures can be studied using the Hardy-Littlewood method for non-singular complete intersections of high dimensions and by adelic harmonic analysis for varieties related to algebraic groups. But for most varieties there are no other methods available apart from sieve theory ...
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Cours magistraux

le (1h3m58s)

P. Salberger - Quantitative aspects of rational points on algebraic varieties (part2)

Let X be a subvariety of Pn defined over a number field and N(B) be the number of rational points of height at most B on X. There are then general conjectures of Manin on the asymptotic behaviour of N(B) when B goes to infinity. These conjectures can be studied using the Hardy-Littlewood method for non-singular complete intersections of high dimensions and by adelic harmonic analysis for varieties related to algebraic groups. But for most varieties there are no other methods available apart from sieve theory ...
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Cours magistraux

le (1h24m44s)

P. Salberger - Quantitative aspects of rational points on algebraic varieties (part3)

Let X be a subvariety of Pn defined over a number field and N(B) be the number of rational points of height at most B on X. There are then general conjectures of Manin on the asymptotic behaviour of N(B) when B goes to infinity. These conjectures can be studied using the Hardy-Littlewood method for non-singular complete intersections of high dimensions and by adelic harmonic analysis for varieties related to algebraic groups. But for most varieties there are no other methods available apart from sieve theory ...
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Cours magistraux

le (1h29m59s)

P. Salberger - Quantitative aspects of rational points on algebraic varieties (part4)

Let X be a subvariety of Pn defined over a number field and N(B) be the number of rational points of height at most B on X. There are then general conjectures of Manin on the asymptotic behaviour of N(B) when B goes to infinity. These conjectures can be studied using the Hardy-Littlewood method for non-singular complete intersections of high dimensions and by adelic harmonic analysis for varieties related to algebraic groups. But for most varieties there are no other methods available apart from sieve theory ...
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Conférences

le (20m49s)

Berlin7 Open Access Conference Scholarly communities Urs Schoepflin

OPEN ACCESS REACHING DIVERSE COMMUNITIESVoir le lien : http://www.berlin7.org/The 7th Berlin Open Access Conference will take place at the Panthéon-Sorbonne University in Paris on 2-4 December 2009. As well as taking stock of past activities, the conference will focus on the question of how to get the different communities more actively involved.About the Berlin DeclarationIn 2003, leading European research institutes and the scientific community signed the Berlin Declaration on Open Access to Knowledge in the Sciences and Humanities on the Internet. The declaration followed on from the Budapest Open Access Initiative in 2002. In signing the declaration, governments, research institutions, ...
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