On reduced stable pair invariants

G Oberdieck - Mathematische Zeitschrift, 2018 - Springer
… We call \(\mathsf {N}_{n, (\beta ,d)}^{X}\) the reduced Pandharipande–Thomas or stable
pair invariants of X. Theorem 1 is the following analog of (1) for the reduced theory: …

The refined BPS index from stable pair invariants

J Choi, S Katz, A Klemm - Communications in Mathematical Physics, 2014 - Springer
… We explicitly compute refined invariants in low degree for local P2 and local P1 × P1 and
check that they agree with the predictions of the direct integration of the generalized …

Stable pair invariants of local Calabi–Yau 4-folds

Y Cao, M Kool, S Monavari - … Mathematics Research Notices, 2022 - academic.oup.com
stable pairs are scheme theoretically supported on the zero section, we express stable pair
invariants … verifications for these local geometries for more general low degree curve classes. …

[PDF][PDF] Stable pair invariants after Pandharipande–Thomas

M Wiesmann - 2021 - math.uni-bonn.de
… of stable pair invariants. In the first section we introduce the notion of a stable pair … This
neighborhood U must be equal to X × B: we can reduce this to the affine case, so assume X = …

Tautological stable pair invariants of Calabi-Yau 4-folds

Y Cao, Y Toda - Advances in Mathematics, 2022 - Elsevier
… These invariants are automatically zero unless L ⋅ β = 0 by … stable pair invariants in terms
of Gopakumar-Vafa invariants of D … By Grothendieck-Riemann-Roch formula, we reduce the …

Stable pair invariants of surfaces and Seiberg–Witten invariants

M Kool - The Quarterly Journal of Mathematics, 2016 - academic.oup.com
stable pair invariants to the Poincaré invariants of Dürr–Kabanov–Okonek. The latter are equal
to the Seiberg–Witten invariants of |… Reduced stable pair invariants have been studied by …

Curve counting via stable pairs in the derived category

R Pandharipande, RP Thomas - Inventiones mathematicae, 2009 - Springer
… for stable pairs on the P2-bundle. The branch maps of Thaddeus and Alexeev-Knutsen [1]
are reduced … Since the stable pair invariants Pn,β are certainly integral, we conclude the BPS …

Stable pairs and BPS invariants

R Pandharipande, R Thomas - Journal of the American Mathematical …, 2010 - ams.org
Invariants counting curves in X via stable pairs have been defined in [26]. A … For the
application to reduced β, we only need the result for stable pairs with reduced support. So, we work …

[PDF][PDF] Duality and universality for stable pair invariants of surfaces

M Kool - arXiv preprint arXiv:1303.5340, 2013 - Citeseer
… Since the reduced stable pair invariants are still defined for S, β … Although stable pair invariants
in classes β, k−β generally … We also study the non-reduced stable pair invariants of any S…

On the Motivic Stable Pairs Invariants of K3 Surfaces

S Katz, A Klemm, R Pandharipande… - K3 surfaces and their …, 2016 - Springer
… For a K3 surface S and a class β ∈ Pic(S), we study motivic invariants of stable pairs moduli
reduced virtual fundamental class of the moduli space of stable maps to S or the stable pairs