Results 31 to 40 of about 538 (92)

Cluster Structures on Double Bott–Samelson Cells

open access: yesForum of Mathematics, Sigma, 2021
Let $\mathsf {C}$ be a symmetrisable generalised Cartan matrix. We introduce four different versions of double Bott–Samelson cells for every pair of positive braids in the generalised braid group associated to $\mathsf {C}$ .
Linhui Shen, Daping Weng
doaj   +1 more source

Logarithmic asymptotics of the genus zero Gromov-Witten invariants of the blown up plane

open access: yes, 2005
We study the growth of the genus zero Gromov-Witten invariants GW_{nD} of the projective plane P^2_k blown up at k points (where D is a class in the second homology group of P^2_k).
Di Francesco   +11 more
core   +6 more sources

Conics on a Generic Hypersurface [PDF]

open access: yes, 2005
In this paper, we compute the contributions from double cover maps to genus 0 degree 2 Gromov-Witten invariants of general type projective hypersurfaces.
Jinzenji, Masao   +2 more
core   +2 more sources

K-Theoretic Donaldson–Thomas Theory of $[\mathbb {C}^2/\mu _r]\times \mathbb {C}$ and Factorization

open access: yesForum of Mathematics, Sigma
We compute the equivariant K-theoretic Donaldson–Thomas invariants of $[\mathbb {C}^2/\mu _r]\times \mathbb {C}$ using factorization and rigidity techniques.
Felix Thimm
doaj   +1 more source

Genus Expanded Cut-and-Join operators and generalized Hurwtiz numbers

open access: yes, 2016
To distinguish the contributions to the generalized Hurwitz number of the source Riemann surface with different genus, we define the genus expanded cut-and-join operators by observing carefully the symplectic surgery and the gluing formulas of the ...
Zheng, Quan
core   +1 more source

The log-open correspondence for two-component Looijenga pairs

open access: yesForum of Mathematics, Sigma
A two-component Looijenga pair is a rational smooth projective surface with an anticanonical divisor consisting of two transversally intersecting curves.
Yannik Schuler
doaj   +1 more source

Worldsheet Instantons and Torsion Curves [PDF]

open access: yes, 2008
We study aspects of worldsheet instantons relevant to a heterotic standard model. The non-simply connected Calabi-Yau threefold used admits Z_3 x Z_3 Wilson lines, and a more detailed investigation shows that the homology classes of curves are H_2(X,Z)=Z^
Braun, Volker   +3 more
core   +1 more source

A placebo‐controlled, double‐blind study evaluating the effect of orally administered polyunsaturated fatty acids on the oclacitinib dose for atopic dogs

open access: yesVeterinary Dermatology, Volume 35, Issue 4, Page 408-417, August 2024.
Background – Supplementation of polyunsaturated fatty acids (PUFA) enables dose reduction of prednisolone and ciclosporin in canine atopic dermatitis (cAD). Objective – To determine if oral administration of PUFA can reduce the dose of oclacitinib for cAD. Conclusion – Oral supplementation of PUFA allowed dose reduction of oclacitinib and improved pVAS,
Laura Schäfer, Nina Thom
wiley   +1 more source

Genus one enumerative invariants in del-Pezzo surfaces with a fixed complex structure [PDF]

open access: yes, 2016
We obtain a formula for the number of genus one curves with a fixed complex structure of a given degree on a del-Pezzo surface that pass through an appropriate number of generic points of the surface.
Biswas, Indranil   +2 more
core   +3 more sources

Quasimaps to moduli spaces of sheaves

open access: yesForum of Mathematics, Pi
We develop a theory of quasimaps to a moduli space of sheaves M on a surface S. Under some assumptions, we prove that moduli spaces of quasimaps are proper and carry a perfect obstruction theory.
Denis Nesterov
doaj   +1 more source

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