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arXiv 0906.0385math.AGmath.CO
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仿射Schubert类、Schur正性和组合霍普夫代数

Affine Schubert classes, Schur positivity, and combinatorial Hopf algebras

Thomas Lam

摘要:

提出了单代数群的仿射格拉斯曼群的Schubert类应视为Schur-正对称函数的观点。特别地,我们给出了k-Schur函数的Schur正性(t = 1时)的几何解释.我们也把这一点的背景下,理论的组合霍普夫代数。

英文摘要:

We suggest the point of view that the Schubert classes of the affine Grassmannian of a simple algebraic group should be considered as Schur-positive symmetric functions. In particular, we give a geometric explanation of the Schur positivity of k-Schur functions (at t = 1). We also put this in the context of the theory of combinatorial Hopf algebras.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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