Jean Pruvost, Jean-François Sablayrolles, Les néologismes

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...

[Jean François Marie Aicardi (1926-2015)].

Jean - François Laslier and M . Remzi

As the readers of this journal may not ignore, Approval Voting (AV) is a voting system where voters can “approve” as many candidates as they want and the winner is the candidate approved by the largest number of voters. Since the publication of the seminal book written by Steven Brams and Peter Fishburn in 1983, a very large number of studies have been devoted to various aspects of this voting ...

Jean - Paul Fermand and Jean - Claude Brouet

In the majority o f chronic lymphocytic leukemias (CLL), proliferative B lymphocytes are thought to be frozen in vivo at a given maturat ion stage (1). Recently, several studies have emphasized that CLL cells could be driven to different iate into plasma cells in vitro (with or without proliferation) upon t r iggering by mitogens (2, 3, 4) or T cel l -der ived factors (5, 6). Th u s far, howeve...

Jean Perrin

1. The first indication of the phenomenon.-When we consider a fluid mass in equilibrium, for example, some water in a glass, all the parts of the mass appear completely motionless to us. If we put into it an object of greater density it falls and, if it is spherical, it falls exactly vertically. The fall, it is true, is the slower the smaller the object; but, so long as it is visible, it falls ...