Florence Hubert

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We present here a number of test cases and meshes which were designed to form a benchmark for finite volume schemes and give a summary of some of the results which were presented by the participants to this benchmark. We address a two-dimensional anisotropic diffusion problem, which is discretized on general, possibly non-conforming meshes. In most cases,(More)
Discrete Duality Finite Volume (DDFV) schemes have recently been developed in 2D to approximate nonlinear diffusion problems on general meshes. In this paper, a 3D extension of these schemes is proposed. The construction of this extension is detailed and its main properties are proved: a priori bounds, well-posedness and error estimates. The practical(More)
We derive a semi-discrete two-dimensional elliptic global Carleman estimate, in which the usual large parameter is connected to the one-dimensional discretization step-size. The discretizations we address are some families of smoothly varying meshes. As a consequence of the Carleman estimate, we derive a partial spectral inequality of the form of that(More)
This paper investigates the impact of inward investment by foreign-owned companies on technical progress and hence labour productivity in the UK manufacturing sector. Using an industry-level panel data set we find that foreign-owned firms have a significant positive effect on the level of technical efficiency in domestic firms. There is evidence of(More)
  • Rebecca Riley, Garry Young, Chris Anderson, Ray Barrell, Andrew Benito, Dominic Rice +3 others
  • 2001
The New Deal for Young People (NDYP) is one of the main components of the UK government's Welfare-to-Work strategy aimed at raising employment and reducing benefit dependency. It combines elements of an active labour market programme with a stricter benefit regime. This paper evaluates its impact on the wider economy, emphasising the importance of the(More)
  • David Aikman, Piergiorgio Alessandri, Bruno Eklund, Prasanna Gai, Sujit Kapadia, Elizabeth Martin +74 others
  • 2009
We demonstrate how the introduction of liability-side feedbacks affects the properties of a quantitative model of systemic risk. The model is known as RAMSI and is still in its development phase. It is based on detailed balance sheets for UK banks and encompasses macro-credit risk, interest and non-interest income risk, network interactions, and feedback(More)
This study concerns some asymptotic models used to compute the flow outside and inside fractures in a bidimensional porous medium. The flow is governed by the Darcy law both in the fractures and in the porous matrix with large discontinuities in the permeability tensor. These fractures are supposed to have a small thickness with respect to the macroscopic(More)