THIS IS WITH GREAT REGRETS THAT WE LET YOU KNOW THAT PERTTI LOUNESTO HAS DIED WHEN SWIMMING IN CRETE ON JUNE 21. HE WAS A FRIEND AND INSPIRATION OF MANY OF US. HE WILL BE MISSED. CONDOLENCES TO HIS FAMILY IN THE NAME OF THE 6TH CONFERENCE AND SESSION ORGANIZERS.

RAFAL ABLAMOWICZ

Ian Porteous is the author of
o "Topological Geometry" [1969][1981]
o "Clifford Algebras and the Classical Groups" [1995], and
o "Geometric Differentiation for the Intelligence of Curves and Surfaces" [2001]

Pertti Lounesto is the author of
o "Clifford Algebras and Spinors" [1997][2001]