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arXiv 2303.03333math.AT
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Milnor流形及相应广义射影积空间的LS-范畴与拓扑复杂度

LS-category and topological complexity of Milnor manifolds and corresponding generalized projective product spaces

Navnath Daundkar

AI总结:

本文研究了Milnor流形及相应广义射影积空间的LS-范畴与拓扑复杂度,确定了其精确值或紧致界限,并计算了等变情形下的界限及利用mod-2上同调环推导了相关空间的界限。

摘要:

Milnor流形是射影空间乘积的一类余维数为1的子流形。本文研究了这些流形的LS-范畴与拓扑复杂度。我们确定了这些流形LS-范畴的精确值,以及在多数情况下其拓扑复杂度的精确值。我们还获得了这些流形拓扑复杂度的紧致界限。已知Milnor流形容许$\mathbb{Z}_2$和圆周作用。我们计算了这些流形等变LS-范畴与等变拓扑复杂度的界限。最后,我们描述了与Milnor流形对应的一些广义射影积空间的mod-2上同调环,并利用此信息计算了这些空间LS-范畴与拓扑复杂度的界限。

英文摘要:

Milnor manifolds are a class of certain codimension-$1$ submanifolds of the product of projective spaces. In this paper, we study the LS-category and topological complexity of these manifolds. We determine the exact value of the LS-category and in many cases, the topological complexity of these manifolds. We also obtain tight bounds on the topological complexity of these manifolds. It is known that Milnor manifolds admit $\mathbb{Z}_2$ and circle actions. We compute bounds on the equivariant LS-category and equivariant topological complexity of these manifolds. Finally, we describe the mod-$2$ cohomology rings of some generalized projective product spaces corresponding to Milnor manifolds and use this information to compute the bound on LS-category and topological complexity of these spaces.

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