Institution
School for Advanced Studies in the Social Sciences
Facility•Villejuif, France•
About: School for Advanced Studies in the Social Sciences is a facility organization based out in Villejuif, France. It is known for research contribution in the topics: Population & Politics. The organization has 1230 authors who have published 2084 publications receiving 57740 citations. The organization is also known as: Ecole des Hautes Etudes en Sciences Sociales & EHESS.
Papers published on a yearly basis
Papers
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TL;DR: A standardized method where empirical alliance networks are compared with a random baseline is developed and it is shown that some corpuses are remarkably well reconstructed by this random model, while others still feature significant divergencies which may be partly connected to field-based experience.
15 citations
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TL;DR: The relationship between a household's income and its carbon emissions is often summed up by a number, the elasticity of the carbon footprint with respect to income as discussed by the authors, and the difference between these two elasticities comes from the personal saving rate's increasing with income.
15 citations
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TL;DR: This paper studied the evolution of the visual complexity of written characters and found that character complexity depends primarily on which linguistic unit the characters encode, and that there is little evidence of evolutionary change in character complexity.
15 citations
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TL;DR: In this article, the authors derived a Liouville type result for operators periodic in one variable, which is new even in the elliptic case, and showed that the space of bounded solutions of the above equation has at most dimension one.
Abstract: This paper is concerned with some extensions of the classical Liouville theorem for bounded harmonic functions to solutions of more general equations. We deal with entire solutions of periodic and almost periodic parabolic equations including the elliptic framework as a particular case. We derive a Liouville type result for periodic operators as a consequence of a result for operators periodic in just one variable, which is new even in the elliptic case. More precisely, we show that if c ⩽ 0 and a i j , b i , c, f are periodic in the same space direction or in time, with the same period, then any bounded solution u of ∂ t u − a i j ( x , t ) ∂ i j u − b i ( x , t ) ∂ i u − c ( x , t ) u = f ( x , t ) , x ∈ R N , t ∈ R , is periodic in that direction or in time. We then derive the following Liouville type result: if c ⩽ 0 , f ≡ 0 and a i j , b i , c are periodic in all the space/time variables, with the same periods, then the space of bounded solutions of the above equation has at most dimension one. In the case of the equation ∂ t u − L u = f ( x , t ) , with L periodic elliptic operator independent of t, the hypothesis c ⩽ 0 can be weakened by requiring that the periodic principal eigenvalue λ p of −L is nonnegative. Instead, the periodicity assumption cannot be relaxed, because we explicitly exhibit an almost periodic function b such that the space of bounded solutions of u ″ + b ( x ) u ′ = 0 in R has dimension 2, and it is generated by the constant solution and a non-almost periodic solution. The above counterexample leads us to consider the following problem: under which conditions are bounded solutions necessarily almost periodic? We show that a sufficient condition in the case of the equation ∂ t u − L u = f ( x , t ) is: f is almost periodic and L is periodic with λ p ⩾ 0 . Finally, we consider problems in general periodic domains under either Dirichlet or Robin boundary conditions. We prove analogous properties as in the whole space, together with some existence and uniqueness results for entire solutions.
15 citations
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TL;DR: Eden and Borgatti as mentioned in this paper generalized their earlier definition of role coloring of graphs and extended their previous results to demonstrate that colorings can be used to find regular partitionings in digraphs, networks and hypergraphs.
14 citations
Authors
Showing all 1316 results
Name | H-index | Papers | Citations |
---|---|---|---|
Philippe Aghion | 122 | 507 | 73438 |
Andrew J. Martin | 84 | 819 | 36203 |
Jean-Jacques Laffont | 83 | 332 | 32930 |
Jonathan Grainger | 78 | 329 | 19719 |
Jacques Mehler | 78 | 188 | 23493 |
James S. Wright | 77 | 514 | 23684 |
Thomas Piketty | 69 | 251 | 36227 |
Dan Sperber | 67 | 207 | 32068 |
Arthur M. Jacobs | 67 | 260 | 14636 |
Jacques Mairesse | 66 | 310 | 20539 |
Andrew E. Clark | 65 | 318 | 28819 |
François Bourguignon | 63 | 287 | 18250 |
Emmanuel Dupoux | 63 | 267 | 14315 |
Marc Barthelemy | 61 | 215 | 25783 |
Pierre-André Chiappori | 61 | 230 | 18206 |