Andromaque de Jean Racine

Sophie Racine

The first [4+2]-annulation between aminocyclobutanes and aldehydes to access tetrahydropyranyl amines is reported. With phthalimido cyclobutane dicarboxylates and aromatic aldehydes, tetrahydropyrans were obtained in 53-92% yield and 3:117:1 dr using scandium triflate or iron trichloride as catalyst. The use of thymineor fluorouracilsubstituted cyclobutanes gave direct access to six-membered ri...

M. Jean-François DELMAS directeur de thèse

In this thesis, we study continuum tree-valued processes. First, we define anabstract framework for these processes, by constructing a metric on the space of locally com-pact, complete R-trees, endowed with a locally finite Borel measure. This topology, calledGromov-Hausdorff-Prokhorov topology, allows for the definition of tree-valued Markov pro-cesses. We then give a new const...

A Proof of Jean De Rumeur's Conjecture

We give an elementary proof of Jean de Rumeur's conjecture stating that in any digraph G of diameter D, such that the sum of the indegree and outdegree of every vertex is at most 2d, the number of vertices is at most X i=0;i=D d i : Our result implies that known good solutions in the case d + = d ? = d are also quasi-optimal under the asumption that d + + d ? = 2d.

la solitude de lhomme dans antigone , la sauvage, le voyageur sans bagage de jean anouilh

ce memoire presente une etude du theme de la solitude de lhomme dans trois oeuvres noires de jean anouilh: antigone, la sauvage, le voyageur sans bagage. lobjectif est dexpliquer les approches de jean anouilh sur les conditions sociales de lhomme daujourdhui qui se revelent par le theme de la solitude. cette etude comprend cinq chapitres: le premier explique la solitude volontaire et egalement ...

La presence de la perse dans Ies oeuvres des philosophes du XVIII siecle (Montesquieu Voltaire ,et Ies Encyclopedistes ) a travers du recit de voyage de Jean Chardin'