86 citations
- Centre National de la Recherche ScientifiqueFR26 papers
- Université Grenoble AlpesFR24 papers
- Université Joseph FourierFR13 papers
- Université Pierre Mendès FranceFR6 papers
- Institut de PhysiqueFR5 papers
- Gesellschaft Fur Mathematik Und DatenverarbeitungDE4 papers
- Ruhr University BochumDE4 papers
- Institut Camille JordanFR3 papers
- Institut de Mathématiques de Jussieu-Paris Rive GaucheFR3 papers
- Laboratoire de Mathématiques d'OrsayFR3 papers
- University of GeorgiaUS3 papers
- University of MiamiUS3 papers
6 papers · 2 filters
On the period map for prime Fano threefolds of degree 10
O. Debarre, A. Iliev, L. Manivel
We prove that the deformations of a smooth complex Fano threefold X with Picard number 1, index 1, and degree 10, are unobstructed. The differential of the period map has two-dimen…
Lowest Weights in Cohomology of Variations of Hodge Structure (II)
Chris Peters, Morihiko Saito
Let be an irreducible complex analytic space with $j:U\into X$ an immersion of a smooth Zariski open subset, and let $\bV$ be a variation of Hodge structure of weight over…
Smooth Affine Surfaces with Non-Unique C*-Actions
Hubert Flenner, Shulim Kaliman, Mikhail Zaidenberg
In this paper we complete the classification of effective C*-actions on smooth affine surfaces up to conjugation in the full automorphism group and up to inversion of C*. If a smoo…
Embeddings of C*-surfaces into weighted projective spaces
Hubert Flenner, Shulim Kaliman, Mikhail Zaidenberg
Let V be a normal affine surface which admits a C*- and a C+-action. In this note we show that in many cases V can be embedded as a principal Zariski open subset into a hypersurfac…
On Birational Transformations of Pairs in the Complex Plane
Jérémy Blanc, Ivan Pan, Thierry Vust
This article deals with the study of the birational transformations of the projective complex plane which leave invariant an irreducible algebraic curve. We try to describe the sta…
Automorphs of indefinite binary quadratic forms and K3-surfaces with Picard number 2
Federica Galluzzi, Giuseppe Lombardo, Chris Peters
Every indefinite binary form occurs as the Picard lattice of some K3-surface. The group of its isometries, or automorphs, coincides with the automorphism group of the K3-surface, b…