985 citations · 12.2k across the 103 of their papers we have counts for
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Indecomposable injective modules of finite Malcev rank over local commutative rings
Francois Couchot
It is proven that each indecomposable injective module over a valuation domain is polyserial if and only if each maximal immediate extension of is of finite r…
Rings whose indecomposable modules are pure-projective or pure-injective
François Couchot
Let be the class of rings for which every indecomposable right module is pure-projective or pure-injective. When is a Noetherian local commutative ring of maximal…
Does the speed of light depend upon the vacuum ?
M. Urban, F. Couchot, X. Sarazin
We propose a quantum model for the vacuum filled of virtual particle pairs. The main originality of this model is to define a density and a life-time of the virtual particles. Comp…
Finitistic Weak Dimension of Commutative Arithmetical Rings
Francois Couchot
It is proven that each commutative arithmetical ring has a finitistic weak dimension . More precisely, this dimension is 0 if is locally IF, 1 if is locally sem…
Planck Early Results: The Galactic Cold Core Population revealed by the first all-sky survey
Planck Collaboration, P. A. R. Ade, N. Aghanim +202
We present the statistical properties of the first version of the Cold Core Catalogue of Planck Objects (C3PO), in terms of their spatial distribution, temperature, distance, mass,…
Planck early results: Cluster Sunyaev-Zeldovich optical scaling relations
Planck Collaboration, N. Aghanim, M. Arnaud +202
We present the Sunyaev-Zeldovich (SZ) signal-to-richness scaling relation (Y500-N200) for the MaxBCG cluster catalogue. Employing a multi-frequency matched filter on the Planck sky…
Planck Early Results: Thermal dust in Nearby Molecular Clouds
Planck Collaboration, A. Abergel, P. A. R. Ade +197
Planck allows unbiased mapping of Galactic sub-millimetre and millimetre emission from the most diffuse regions to the densest parts of molecular clouds. We present an early analys…
Planck Early Results. II. The thermal performance of Planck
Planck Collaboration, P. A. R. Ade, N. Aghanim +225
The performance of the Planck instruments in space is enabled by their low operating temperatures, 20K for LFI and 0.1K for HFI, achieved through a combination of passive radiative…
Planck Early Results: The Planck mission
Planck Collaboration, P. A. R. Ade, N. Aghanim +272
The European Space Agency's Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in li…