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30 papers · 1 filter
The Galoisian envelope of a germ of foliation: the quasi-homogeneous case
Emmanuel Paul
We give geometric and algorithmic criterions in order to have of a proper Galois closure for a codimension one germ of quasi-homogeneous foliation. We recall this notion recently i…
Partitionnement d'un réseau de sociabilité à fort coefficient de clustering
Romain Boulet, Bertrand Jouve
In order to compare social organization of a medieval peasantry before and after the Hundred Years' War we study the sructure of social networks built from a corpus of agrarian con…
The q-analogue of the wild fundamental group (I)
J. -P. Ramis, J. Sauloy
We describe an explicit construction of galoisian Stokes operators for irregular linear q-difference equations. These operators are parameterized by the points of an elliptic curve…
Boutet de Monvel's Calculus and Groupoids I
Johannes Aastrup, Severino T. Melo, Bertrand Monthubert +1
Can Boutet de Monvel's algebra on a compact manifold with boundary be obtained as the algebra of pseudodifferential operators on some Lie groupoid ? If it could, the ke…
Propriétés ergodiques des applications rationnelles
Vincent Guedj
This is a survey article with focus on the following problem. Given a meromorphic endomorphism of some compact Kähler manifold , construct and study - under natural…
Smoothing under diffeomorphic constraints with homeomorphic splines
Jeremie bigot, Sebastien Gadat
In this paper we introduce a new class of diffeomorphic smoothers based on general spline smoothing techniques and on the use of some tools that have been recently developed in the…