The problem of description superintegrable systems (i.e., with closed trajectories in a certain domain) the class rotationally symmetric natural mechanical goes back to Bertrand and Darboux. We describe all (in domain slow motions) magnetic geodesic flows. show that sufficiently motions central field on two-dimensional manifold revolution are periodic if only metric has constant scalar curvatur...

— Publication: In Groupes de Galois arithmetiques et differentiels (Luminy 2004; eds. D. Bertrand and P. Dèbes), Sem. et Congres, Vol. 13 (2006), 165–230. The genus of projective curves discretely separates decidedly different two variable algebraic relations. So, we can focus on the connected moduli Mg of genus g curves. Yet, modern applications require a data variable (function) on such curve...

Using a linear complementarity approach, we simulate the Japanese wholesale electricity market as a transmission-constrained Cournot market. Following Hobbs (2001), our model adopts the Cournot assumption in the energy market and the Bertrand assumption in the transmission market. The Bertrand assumption means that generators consider transmission charges as being exogenous, which can be interp...

February 19, 2015 Type Package Title Latent Class Models with Covariate Effects on Underlying and Measured Variables Version 1.0 Date 2013-05-03 Author Aurelie Bertrand and Christian M. Hafner Maintainer Aurelie Bertrand Description Estimation of latent class models with covariate effects on underlyi...