Sums of squares on real algebraic surfaces Claus Scheiderer OriginalPaper 13 March 2006 Pages: 395 - 410
On Birkhoff Theorems for Lagrangian invariant tori with closed orbits M. J. Dias CarneiroRafael O. Ruggiero OriginalPaper 15 February 2006 Pages: 411 - 432
Sur les espaces multisécants aux courbes algébriques Patrick Le Barz OriginalPaper 06 February 2006 Pages: 433 - 452
Non-completeness of the Arakelov-induced metric on moduli space of curves J. JorgensonJ. Kramer OriginalPaper 07 February 2006 Pages: 453 - 463
Engel-like characterization of radicals in finite dimensional Lie algebras and finite groups Tatiana BandmanMikhail BorovoiEugene Plotkin OriginalPaper 06 March 2006 Pages: 465 - 481
Seshadri constants on ruled surfaces: the rational and the elliptic cases Luis Fuentes García OriginalPaper 06 March 2006 Pages: 483 - 505