383 citations
- Uppsala UniversitySE5 papers
- Linköping UniversitySE4 papers
- Stockholm UniversitySE3 papers
- University of WarwickGB3 papers
- Future Position XSE2 papers
- KTH Royal Institute of TechnologySE2 papers
- Swedish Defence Research AgencySE2 papers
- University of Illinois Urbana-ChampaignUS2 papers
- ABB (Sweden)SE1 paper
- Aoyama Gakuin UniversityJP1 paper
- Beijing Normal UniversityCN1 paper
- Ben-Gurion University of the NegevIL1 paper
6 papers · 1 filter
Relations in the Tautological Ring of the Universal Curve
Olof Bergvall
We bound the dimensions of the graded pieces of the tautological ring of the universal curve from below for genus up to 27 and from above for genus up to 9. As a consequence we obt…
A note on the Severi problem for toric surfaces
Lionel Lang, Ilya Tyomkin
In this note, we make a step towards the classification of toric surfaces admitting reducible Severi varieties. We generalize the results of [Lan19, Tyo13, Tyo14], and provide two…
Braid monodromy of univariate fewnomials
Alexander Esterov, Lionel Lang
Let be the space of non-singular, univariate polynomials of degree . The Viète map $\mathscr{V} : \mathcal{C}_d \rightarrow Sym_d(\mathbb…
The Zariski-Lipman conjecture for complete intersections
Rolf Källström
The tangential ramification locus is the subset of points in the ramification locus where the sheaf of relative vector fields fails to be local…
Liftable derivations for generically separably algebraic morphisms of schemes
Rolf Källström
We consider dominant, generically algebraic, and tamely ramified (if the characteristic is positive) morphisms , where Y,S are Noetherian and integral and X is a Kr…
Geometric interplay between function subspaces and their rings of differential operators
Rikard Bögvad, Rolf Källström
We study, in the setting of algebraic varieties, finite-dimensional spaces of functions V that are invariant under a ring D^V of differential operators, and give conditions under w…