2013
DOI: 10.4310/cntp.2013.v7.n4.a3
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Integrality of relative BPS state counts of toric del Pezzo surfaces

Abstract: Relative Bogomolny-Prasad-Sommerfield (BPS) state counts for log Calabi-Yau surface pairs were introduced by Gross-Pandharipande-Siebert in [4] and conjectured by the authors to be integers. For toric del Pezzo surfaces, we provide an arithmetic proof of this conjecture, by relating these invariants to the local BPS state counts of the surfaces. The latter were shown to be integers by Peng in [15]; and more generally for toric Calabi-Yau three-folds by Konishi in [8].

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Cited by 10 publications
(10 citation statements)
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“…Proof. The argument follows the same lines as the proof of the main result in [32] and we therefore do not reproduce it here.…”
Section: Multiple Covers and Loop Quiver Dt Invariantsmentioning
confidence: 96%
See 1 more Smart Citation
“…Proof. The argument follows the same lines as the proof of the main result in [32] and we therefore do not reproduce it here.…”
Section: Multiple Covers and Loop Quiver Dt Invariantsmentioning
confidence: 96%
“…In [43,Proposition 6.1] (see (6.1)), the authors compute the contribution of multiple covers over rigid relative maps to the relative GW invariants. This leads them to define relative BPS state counts, which are shown to be integers for toric del Pezzo surfaces in [32]. One motivation for this work is that the enumerative meaning of relative BPS state counts are not clear in the context of a smooth divisor.…”
Section: Introductionmentioning
confidence: 99%
“…From Corollary 1.13 we derive an enumerative meaning of the local BPS numbers n β (K X ) subject to Conjecture 1.8 ([21,Conjecture 1.3]). This is a BPS version of the log-local principle pursued in [10][11][12]45,56,58]. Notice that Conjecture 1.8 is proven for X = P 2 in [8] based on [9,23], and for any del Pezzo surface and classes of arithmetic genus ≤ 2 in [20,21].…”
Section: Now We Return To the Case Of Anmentioning
confidence: 99%
“…In [32,Proposition 6.1] (see (6.1)), the authors compute the contribution of multiple covers over rigid relative maps to the relative GW invariants. This leads them to define relative BPS state counts, which are shown to be integers for toric del Pezzo surfaces in [22]. One motivation for this work is that the enumerative meaning of relative BPS state counts are not clear in the context of a smooth divisor.…”
Section: Introductionmentioning
confidence: 99%