Vol. 4, No. 2, 2004 · Contents

Bruce N. Cooperstein and Sergey V. Shpectorov:
A group-free characterization of the P-geometry for Co2

Georgios Ketsetzis and Simon Salamon:
Complex structures on the Iwasawa manifold

Hans Cuypers:
Extended near hexagons and line systems

Yoshiaki Fukuma:
On the second sectional geometric genus of quasi-polarized manifolds

Hajime Tanaka:
Association schemes of affine type over finite rings

Alessia Cattabriga and Michele Mulazzani:
(1, 1)-knots via the mapping class group of the twice punctured torus