The osculating hyperquadrics of the three-component distribution in affine space
The theorem of matheer on generic projections in the setting of algebraic geometry.
The Waring loci of ternary quartics.
Théorie combinatoire de la dimension d'une variété algébrique
Threefolds in P5 with a 3-dimensional family of plane curves.
Tie transformations of Dynkin graphs and singularities on quartic surfaces.
Tricanonical Maps of Numerical Godeaux Surfaces.
Trigonal Hyperplane Sections of Projective Surfaces.
Triple Solids with Sectional Genus three.
Über Bilder projektiv-algebraischer Räume.
Über den Zusammenhang zwischen den Partitionen einer natürlichen Zahl und den linearen Schnitten der einfachsten Segremannigfaltigkeiten.
Über gewisse G-stabile Teilmengen in pojektiven Räumen.
Ueber algebraische Flächen, die zu einander apolar sind.
Ueber die Flächen, deren Gleichungen aus denen ebener Curven durch eine bestimmte Substitution hervorgehen
Ueber die mechanische Erzeugung von Curven
Ueber die verschiedenen Formen der Bedingungsgleichung, welche ausdrückt, dass sechs Punkte auf einem Kegelschnitte liegen.
Un analogue local du theoreme de Harnack.
Un teorema sui sistemi lineari di quadriche irriducibili di prima e seconda specie
Una osservazione sulla curva di Cremona di
Unique decomposition for a polynomial of low rank
Let F be a homogeneous polynomial of degree d in m + 1 variables defined over an algebraically closed field of characteristic 0 and suppose that F belongs to the sth secant variety of the d-uple Veronese embedding of into but that its minimal decomposition as a sum of dth powers of linear forms requires more than s summands. We show that if s ≤ d then F can be uniquely written as , where are linear forms with t ≤ (d-1)/2, and Q is a binary form such that with ’s linear forms and ’s forms...