GA 1/2006
Milan Pobořil and Michal Marvan, Recursion operator for the IGSG equation
Published in: Fundam. Prikl. Mat. 12 (2006) (7) 117–128 (in Russian).
Abstract  Full-text at nlin.SI/0605015

GA 2/2006
Artur Sergyeyev, Exact solvability of superintegrable Benenti systems
Published in: J. Math. Phys. 48 (2007), paper 052114.

GA 3/2006
Michal Marvan, Sufficient set of integrability conditions of an orthonomic system

GA 4/2006
Jan Tichavský, On the Hadamard condition on Robertson-Walker spacetime

The title and content of the preprint may have been modified in the final publication.