Henri Dubois (1923-2012)

Possibilistic logic 1 Didier DUBOIS – Jérôme LANG – Henri PRADE

Possibilistic logic is a logic of uncertainty tailored for reasoning under incomplete evidence and partially inconsistent knowledge. At the syntactic level it handles formulas of propositional or first-order logic to which are attached numbers between 0 and 1, or more generally elements in a totally ordered set. These weights are lower bounds on so-called degrees of necessity or degrees of poss...

Charles-Jules-Henri Nicolle

sia. Nicolle's many accomplishments include the discovery that epidemic typhus is transmitted by body lice (Pediculus humanis corporis), discovery of the phenomenon of inap-parent infection, and possibly the first isolation of human influenza virus after experimental transmission. Nicolle made many other fundamental contributions to knowledge of infectious diseases. This year is the centenary o...

Henri De Mondeville *

Henri ’ s Crystal Ball

O n April 10, 1908, at the general session of the Fourth International Congress of Mathematicians held in Rome, Gaston Darboux presented a talk by Henri Poincaré (1854–1912) entitled The Future of Mathematics (Poincaré was unfortunately unable to deliver the talk himself). The original can be found on the web at: http://gallica. bnf.fr/ark:/12148/bpt6k17083c/f934n10. capture. It is now a full c...

Preface Henri Darmon

Modular curves and their close relatives, Shimura curves attached to multiplicative subgroups of quaternion algebras, are equipped with a distinguished collection of points defined over class fields of imaginary quadratic fields and arising from the theory of complex multiplication: the so-called Heegner points. It is customary to use the same term to describe the images of degree zero divisors...