383 research outputs found
Refined floor diagrams from higher genera and lambda classes
We show that, after the change of variables , refined floor
diagrams for and Hirzebruch surfaces compute generating series
of higher genus relative Gromov-Witten invariants with insertion of a lambda
class. The proof uses an inductive application of the degeneration formula in
relative Gromov-Witten theory and an explicit result in relative Gromov-Witten
theory of . Combining this result with the similar looking
refined tropical correspondence theorem for log Gromov-Witten invariants, we
obtain some non-trivial relation between relative and log Gromov-Witten
invariants for and Hirzebruch surfaces. We also prove that the
Block-G\"ottsche invariants of and are related by
the Abramovich-Bertram formula.Comment: 44 pages, 8 figures, revised version, exposition greatly improved,
main results unchanged, published in Selecta Mathematic
The quantum tropical vertex
Gross-Pandharipande-Siebert have shown that the 2-dimensional
Kontsevich-Soibelman scattering diagrams compute certain genus zero log
Gromov-Witten invariants of log Calabi-Yau surfaces. We show that the
-refined 2-dimensional Kontsevich-Soibelman scattering diagrams compute,
after the change of variables , generating series of certain
higher genus log Gromov-Witten invariants of log Calabi-Yau surfaces.
This result provides a mathematically rigorous realization of the physical
derivation of the refined wall-crossing formula from topological string theory
proposed by Cecotti-Vafa, and in particular can be seen as a non-trivial
mathematical check of the connection suggested by Witten between higher genus
open A-model and Chern-Simons theory.
We also prove some new BPS integrality results and propose some other BPS
integrality conjectures.Comment: v2: 68 pages, revised version (minor mistake in Section 5 corrected),
published in Geometry and Topolog
On an example of quiver DT/relative GW correspondence
We explain and generalize a recent result of Reineke-Weist by showing how to
reduce it to the Gromov-Witten/Kronecker correspondence by a degeneration and
blow-up. We also refine the result by working with all genera on the
Gromov-Witten side and with refined Donaldson-Thomas invariants on the quiver
side.Comment: 37 pages, comments welcom
Quivers and curves in higher dimension
We prove a correspondence between Donaldson-Thomas invariants of quivers with
potential having trivial attractor invariants and genus zero punctured
Gromov-Witten invariants of holomorphic symplectic cluster varieties. The proof
relies on the comparison of the stability scattering diagram, describing the
wall-crossing behavior of Donaldson-Thomas invariants, with a scattering
diagram capturing punctured Gromov-Witten invariants via tropical geometry.Comment: 38 pages, 3 figures. Comments welcome
Fock-Goncharov dual cluster varieties and Gross-Siebert mirrors
Cluster varieties come in pairs: for any cluster variety there
is an associated Fock-Goncharov dual cluster variety. On the
other hand, in the context of mirror symmetry, associated with any log
Calabi-Yau variety is its mirror dual, which can be constructed using the
enumerative geometry of rational curves in the framework of the Gross-Siebert
program. In this paper we bridge the theory of cluster varieties with the
algebro-geometric framework of Gross-Siebert mirror symmetry. Particularly, we
show that the mirror to the cluster variety is a degeneration of
the Fock-Goncharov dual cluster variety and vice versa. To do
this, we investigate how the cluster scattering diagram of
Gross-Hacking-Keel-Kontsevich compares with the canonical scattering diagram
defined by Gross-Siebert to construct mirror duals in arbitrary dimensions.
Consequently, we derive an enumerative interpretation of the cluster scattering
diagram. Along the way, we prove the Frobenius structure conjecture for a class
of log Calabi-Yau varieties obtained as blow-ups of toric varieties.Comment: 51 pages, revised version published in Journal f\"ur die reine und
angewandte Mathematik (Crelles Journal
Contributions à la résolution de problèmes à une machine avec fonctions temporelles de type exponentiel
Notre travail s’inscrit dans une classe particulière des problèmes d’ordonnancement : les problèmes à une machine dans lesquels les durées d’exécution des tâches ne sont plus des constantes mais dépendent du temps. La complexité de ces problèmes dépend de la nature de la fonction temporelle modélisant la durée des tâches. Nous étudions le cas particulier des fonctions exponentielles. Pour un type particulier de fonctions exponentielles, nous démontrons que des problèmes deviennent polynomiaux sous certaines conditions.
- …