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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2306.12501 |
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| _version_ | 1866914545499373568 |
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| author | Gaetz, Christian Pechenik, Oliver Pfannerer, Stephan Striker, Jessica Swanson, Joshua P. |
| author_facet | Gaetz, Christian Pechenik, Oliver Pfannerer, Stephan Striker, Jessica Swanson, Joshua P. |
| contents | Webs give a diagrammatic calculus for spaces of tensor invariants. We introduce hourglass plabic graphs as a new avatar of webs, and use these to give the first rotation-invariant $U_q(\mathfrak{sl}_4)$-web basis, a long-sought object. The characterization of our basis webs relies on the combinatorics of these new plabic graphs and associated configurations of a symmetrized six-vertex model. We give growth rules, based on a novel crystal-theoretic technique, for generating our basis webs from tableaux and we use skein relations to give an algorithm for expressing arbitrary webs in the basis. We also discuss how previously known rotation-invariant web bases can be unified in our framework of hourglass plabic graphs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_12501 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Rotation-invariant web bases from hourglass plabic graphs Gaetz, Christian Pechenik, Oliver Pfannerer, Stephan Striker, Jessica Swanson, Joshua P. Combinatorics Quantum Algebra Representation Theory 05E10, 17B37, 13A50, 18M15 Webs give a diagrammatic calculus for spaces of tensor invariants. We introduce hourglass plabic graphs as a new avatar of webs, and use these to give the first rotation-invariant $U_q(\mathfrak{sl}_4)$-web basis, a long-sought object. The characterization of our basis webs relies on the combinatorics of these new plabic graphs and associated configurations of a symmetrized six-vertex model. We give growth rules, based on a novel crystal-theoretic technique, for generating our basis webs from tableaux and we use skein relations to give an algorithm for expressing arbitrary webs in the basis. We also discuss how previously known rotation-invariant web bases can be unified in our framework of hourglass plabic graphs. |
| title | Rotation-invariant web bases from hourglass plabic graphs |
| topic | Combinatorics Quantum Algebra Representation Theory 05E10, 17B37, 13A50, 18M15 |
| url | https://arxiv.org/abs/2306.12501 |