2,696 research outputs found
A Primal-Dual Approach of Weak Vector Equilibrium Problems
In this paper we provide some new sufficient conditions that ensure the
existence of the solution of a weak vector equilibrium problem in Hausdorff
topological vector spaces ordered by a cone. Further, we introduce a dual
problem and we provide conditions that assure the solution set of the original
problem and its dual coincide. We show that many known problems from the
literature can be treated in our primal-dual model. We provide several
coercivity conditions in order to obtain solution existence of the primal-dual
problems without compactness assumption. We pay a special attention to the case
when the base space is a reflexive Banach space. We apply the results obtained
to perturbed vector equilibrium problems.Comment: 20 page
Exploration of the brown dwarf regime around solar-like stars by CoRoT
Aims. A summary of the CoRoT brown dwarf investigations are presented.
Methods. Transiting brown dwarfs around solar like stars were studied by using
the photometric time-series of CoRoT, and ground based radial velocity
measurements. Results. CoRoT detected three transiting brown dwarfs around F
and G dwarf stars. The occurence rate of brown dwarfs was found to be 0.20 +/-
0.15% around solar-like stars which is compatible with the value obtained by
Kepler-data.Comment: To be appeared in 'The CoroT legacy book', 2016, Scientific Editors:
Annie Baglin et al., Publisher: EDP Sciences, ISBN: 978-2-7598-1876-
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