Vol. 1, No. 4, 2001 · Contents

Laura Bader, Antonio Cossidente and Guglielmo Lunardon:
Generalizing flocks of $Q^+(3,q)$

Stefan Immervoll:
Topological and smooth unitals

Antonio Lanteri and Raquel Mallavibarrena:
Osculatory behavior and second dual varieties of Del Pezzo surfaces

John Sarli and Philipp McClurg:
A rank 3 tangent complex of $PSp_4(q)$, $q$ odd

Dimitrios I. Dais and Marko Roczen:
On the string-theoretic Euler number of 3-dimensional A-D-E singularities