拉格朗日格拉斯曼流形中的舒伯特缺陷
Schubert defects in Lagrangian Grassmannians
AI总结:
本文借鉴已有研究提出拉格朗日格拉斯曼流形中对应舒伯特闭链的GLSM缺陷构造方法,通过多维度对比验证了该构造的合理性,为相关数学物理研究提供新的构造思路。
摘要:
本文借鉴Closset-Khlaif关于普通格拉斯曼流形中舒伯特闭链的最新研究,提出了一种对应拉格朗日格拉斯曼流形中舒伯特闭链的GLSM(规范线性西格玛模型)缺陷构造方法。在拉格朗日格拉斯曼流形的情形下,体GLSM以及缺陷自身都存在超势项,用于施加各向同性约束。我们通过将GLSM缺陷的支撑轨迹与数学描述对比、验证维度,以及最重要的——将缺陷指标与量子上同调和量子K理论中舒伯特闭链的已知和预期多项式不变量进行比较,检验了我们的构造。
英文摘要:
In this paper, we propose a construction of GLSM defects corresponding to Schubert cycles in Lagrangian Grassmannians, following recent work of Closset-Khlaif on Schubert cycles in ordinary Grassmannians. In the case of Lagrangian Grassmannians, there are superpotential terms in both the bulk GLSM as well as on the defect itself, enforcing isotropy constraints. We check our construction by comparing the locus on which the GLSM defect is supported to mathematical descriptions, checking dimensions, and perhaps most importantly, comparing defect indices to known and expected polynomial invariants of the Schubert cycles in quantum cohomology and quantum K theory.
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