Espaces de représentations complètement réductibles

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Espaces de représentations complètement réductibles

We study some geometric properties of actions on nonpositively curved spaces related to complete reducibility and semisimplicity, focusing on representations of a finitely generated group Γ in the group G of rational points of a reductive group over a local field, acting on the associated space (symmetric space or affine building). We prove that the space of completely reducible classes is the ...

متن کامل

Itération D’applications Rationnelles Dans Les Espaces De Matrices

The iteration of rational maps is well understood in dimension 1 but less so in higher dimensions. We study some maps on spaces of matrices which present a weak complexity with respect to the ring structure. First, we give some properties of certain rational maps; the simplest example is the rational map which sends the matrix M onto M2 for which we exhibit some dynamical properties. Finally, w...

متن کامل

Espaces de représentation multidimensionnels dédiés à la visualisation

Résumé. Dans un système décisionnel, la composante visuelle est importante pour l’analyse en ligne OLAP. Dans cet article, nous proposons une nouvelle approche qui permet d’apporter une solution au problème de visualisation des données engendré par l’éparsité. En se basant sur les résultats d’une analyse des correspondances multiples (ACM), nous tentons d’atténuer l’effet négatif de l’éparsité ...

متن کامل

Zéro-cycles de degré un sur les espaces homogènes

We explain how to build homogeneous spaces of a connected linear algebraic group, having zero-cycles of degree one but no rational point, even on a smooth compactification. Thus, we give a negative answer to a recent question asked by Burt Totaro. Parimala ([Pa]) has independently produced such spaces over fields of the type k((t)) (for k a suitable p-adic field), which are projective varieties...

متن کامل

Représentations et régularisations pour la classification de sentiments

As web 2.0 is spreading, users get used to give their opinion on forums, blogs and e-commerce websites. This is a valuable piece of information for many applications such as consumer modeling, sales prediction or opinion survey. According to the literature, the efficiency of opinion mining tools will mainly relies on the ability of discriminating texts that express positive sentiments from text...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of the London Mathematical Society

سال: 2011

ISSN: 0024-6107

DOI: 10.1112/jlms/jdq076