Jean-Charles Falardeau, 1914-1989

[Jean Leliévre (1914-1969)].

Jean-charles Faugère Chapitre 1 Introduction Générale

We present an efficient algorithm for the transformation of a Gröbner basis of a zero–dimensional ideal with respect to any given ordering into a Gröbner basis with respect to any other ordering. This algorithm is polynomial in the degree of the ideal. In particular the lexicographical Gröbner basis can be obtained by applying this algorithm after a total degree Gröbner basis computation: it is...

Jean-pran~ois Richard S~bastien Poitrenaud and Charles Tijus

A general model of problem-solving processes based on misconception elimination is presented to simulate both impasses and solving processes. The model operates an goal-related rules ond a set of constraint rules in the farm of “IF (state or goal), DO NOT (Action)” for the explicit constraints in the instructions and the implicit constraints that come from misconceptions of legal moves. When im...

Frames from the Life and Death of Jean Charles de Menezes

This article is a theoretical enquiry about the death of the Brazilian citizen Jean Charles de Menezes, shot in London at Stockwell tube station on 22 July 2005 by unknown specialist firearms’ officers. The previous day some stations of the Tube were struck by failed bombing attacks. The police were chasing four suspects. Some hours after the murder, de Menezes was discovered to be innocent and...

An intimate understanding of place: Charles Sauriol and Toronto’s Don River Valley, 1927-1989.

Every summer from 1927 to 1968, Toronto conservationist Charles Sauriol and his family moved from their city home to a rustic cottage just a few kilometres away, within the urban wilderness of Toronto’s Don River Valley. In his years as a cottager, Sauriol saw the valley change from a picturesque setting of rural farms and woodlands to an increasingly threatened corridor of urban green space. H...