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en:group:seminars:20100127 [2010/01/14 11:35]
mahdi created
en:group:seminars:20100127 [2010/01/14 12:28]
meyer
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 title : The parameters of duals of algebraic geometric codes on surfaces title : The parameters of duals of algebraic geometric codes on surfaces
 speaker : Alain Couvreur speaker : Alain Couvreur
-affiliation : Institut de Mathématiques de Luminy.+affiliation : INRIA.
 time : 16h15 time : 16h15
 room : BC129 room : BC129
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 ==== abstract ==== ==== abstract ====
-  ​It is well-known in the theory of codes on curves that the dual of an+It is well-known in the theory of codes on curves that the dual of an
 algebraic-geometric code on a curve is an algebraic-geometric code on algebraic-geometric code on a curve is an algebraic-geometric code on
 the same curve. It turns out that this property does not hold in general the same curve. It turns out that this property does not hold in general
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 duals of algebraic geometric codes on higher-dimensional varieties. duals of algebraic geometric codes on higher-dimensional varieties.
  
-  ​In this talk, after a brief review on the classical properties of codes+In this talk, after a brief review on the classical properties of codes
 on curves, we will focus on the problem of finding the parameters of on curves, we will focus on the problem of finding the parameters of
 duals of codes on surfaces. A method yielding a lower bound for the duals of codes on surfaces. A method yielding a lower bound for the