Results 121 to 130 of about 2,805,734 (255)

Automorphism groups of P1$\mathbb {P}^1$‐bundles over geometrically ruled surfaces

Journal of the London Mathematical Society, Volume 113, Issue 6, June 2026.
Abstract We classify the pairs (X,π)$(X,\pi)$, where π:X→S$\pi \colon X\rightarrow S$ is a P1$\mathbb {P}^1$‐bundle over a non‐rational geometrically ruled surface S$S$ and Aut∘(X)$\mathrm{Aut}^\circ (X)$ is relatively maximal, that is, maximal with respect to the inclusion in the group Bir(X/S)$\mathrm{Bir}(X/S)$.
Pascal Fong
wiley   +1 more source

Testing the (0,2) mirror map

Journal of High Energy Physics, 2019
We test a proposed mirror map at the level of correlators for linear models describing the (0,2) moduli space of superconformal field theories with a (2,2) locus associated to Calabi-Yau hypersurfaces in toric varieties. We verify in non-trivial examples
Marco Bertolini
doaj   +1 more source

Intersection theory on toric varieties

Topology, 1997
24 pages, plain ...
Fulton, William, Sturmfels, Bernd
openaire   +3 more sources

Coulomb branch algebras via symplectic cohomology

Journal of Topology, Volume 19, Issue 2, June 2026.
Abstract Let (M¯,ω)$(\bar{M}, \omega)$ be a compact symplectic manifold with convex boundary and c1(TM¯)=0$c_1(T\bar{M})=0$. Suppose that (M¯,ω)$(\bar{M}, \omega)$ is equipped with a convex Hamiltonian G$G$‐action for some connected, compact Lie group G$G$.
Eduardo González, Cheuk Yu Mak, Dan Pomerleano   +2 more
wiley   +1 more source

Twisted forms of toric varieties, their derived categories, and their rationality

, 2020
Toric varieties defined over the complex numbers provide an important testing ground for computing various algebro-geometric invariants (e.g., the coherent derived category associated to a variety), as many computations of interest may be phrased ...
McFaddin, Patrick
core  

Toric varieties and their applications

, 2022
The thesis provides an introduction into the theory of affine and abstract toric vari- eties. In the first chapter, tools from algebraic geometry indispensable for the compre- hension of the topic are introduced.
Klepáč, Adam
core  

Estimating Calabi-Yau hypersurface and triangulation counts with equation learners

Journal of High Energy Physics, 2019
We provide the first estimate of the number of fine, regular, star triangulations of the four-dimensional reflexive polytopes, as classified by Kreuzer and Skarke (KS).
Ross Altman, Jonathan Carifio, James Halverson, Brent D. Nelson   +3 more
doaj   +1 more source

Toric Hyperkahler Varieties

, 2002
Extending work of Bielawski-Dancer and Konno, we develop a theory of toric hyperkahler varieties, which involves toric geometry, matroid theory and convex polyhedra.
Hausel, Tamas, Sturmfels, B, Hausel, T
core  

Contraction images of toric varieties

, 2023
Let $f:X \to Y$ be a proper morphism of normal varieties with $f_*\mathcal{O}_X = \mathcal{O}_Y$. If $X$ is toric, then $Y$ is toric and $f$ is a toric morphism for some toric structures on $X$ and $Y$.Comment: This preprint has been withdrawn by the ...
Tanaka, Hiromu
core  

Tori and surfaces violating a local-to-global principle for rationality

Comptes Rendus. Mathématique
We show that even within a class of varieties where the Brauer–Manin obstruction is the only obstruction to the local-to-global principle for the existence of rational points (Hasse principle), this obstruction, even in a stronger, base change invariant ...
Kunyavskiĭ, Boris
doaj   +1 more source