A Steenrod Square for Link Floer Homology
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917367578099712 |
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| author | Tao, Yan |
| author_facet | Tao, Yan |
| contents | Recently, Manolescu-Sarkar constructed a stable homotopy type for link Floer homology, which uses grid homology and accounts for all domains that do not pass through a specific square. We explicitly give the framings of the lower-dimensional moduli spaces of the Manolescu-Sarkar construction as well as the more general moduli spaces corresponding to the full grid. Though in the latter case the stable homotopy type is not known, the explicit framings are enough to construct a framed 1-flow category, a construction by Lobb-Orson-Schütz which contains enough information to find the second Steenrod square. Finally, we find an algorithm for computing the second Steenrod square for all versions of grid homology coming from the full grid. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_02000 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Steenrod Square for Link Floer Homology Tao, Yan Geometric Topology Algebraic Topology Recently, Manolescu-Sarkar constructed a stable homotopy type for link Floer homology, which uses grid homology and accounts for all domains that do not pass through a specific square. We explicitly give the framings of the lower-dimensional moduli spaces of the Manolescu-Sarkar construction as well as the more general moduli spaces corresponding to the full grid. Though in the latter case the stable homotopy type is not known, the explicit framings are enough to construct a framed 1-flow category, a construction by Lobb-Orson-Schütz which contains enough information to find the second Steenrod square. Finally, we find an algorithm for computing the second Steenrod square for all versions of grid homology coming from the full grid. |
| title | A Steenrod Square for Link Floer Homology |
| topic | Geometric Topology Algebraic Topology |
| url | https://arxiv.org/abs/2511.02000 |