Etoiles doubles découvertes à Hem

Quantization of Drinfel’d doubles

Hopf algebra quantizations of 4-dimensional and 6-dimensional real classical Drinfel’d doubles are studied by following a direct “analytic” approach. The full quantization is explicitly obtained for most of the Drinfel’d doubles, except a small number of them for which the dual Lie algebra is either sl2 or so(3). In the latter cases, the classical r-matrices underlying the Drinfel’d double quan...

Shared delusions of doubles.

This is the first report of two partners in a folie à deux situation manifesting identical Capgras delusions. It is postulated that the Capgras syndrome developed as a result of interaction between a dominant patient with primarily paranoid psychopathology and a submissive one with primarily organic dysfunction. The submissive "neuro-organic" partner experienced a non-delusional misidentificati...

Caractérisation automatique des classes découvertes en classification non supervisée

Résumé. Dans cet article, nous proposons une nouvelle approche de classification et de pondération des variables durant un processus d’apprentissage non supervisé. Cette approche est basée sur le modèle des cartes auto-organisatrices. L’apprentissage de ces cartes topologiques est combiné à un mécanisme d’estimation de pertinences des différentes variables sous forme de poids d’influence sur la...

Pair extended coupled cluster doubles.

The accurate and efficient description of strongly correlated systems remains an important challenge for computational methods. Doubly occupied configuration interaction (DOCI), in which all electrons are paired and no correlations which break these pairs are permitted, can in many cases provide an accurate account of strong correlations, albeit at combinatorial computational cost. Recently, th...

Twisted quantum doubles