The five-color hypercube Adinkra and the Jacobian of a generalized Fermat curve
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arXiv
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| Format: | Preprint |
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2024
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| author | Francis, Amanda E. Whitcher, Ursula A. |
| author_facet | Francis, Amanda E. Whitcher, Ursula A. |
| contents | Adinkras are highly structured graphs developed to study 1-dimensional supersymmetry algebras. A cyclic ordering of the edge colors of an Adinkra, or rainbow, determines a Riemann surface and a height function on the vertices of the Adinkra determines a divisor on this surface. We study the induced map from height functions to divisors on the Jacobian of the Riemann surface. In the first nontrivial case, a 5-dimensional hypercube corresponding to a Jacobian given by a product of 5 elliptic curves each with $j$-invariant 2048, we develop and characterize a purely combinatorial algorithm to compute height function images. We show that when restricted to a single elliptic curve, every height function is a multiple of a specified generating divisor, and raising and lowering vertices corresponds to adding or subtracting this generator. We also give strict bounds on the coefficients of this generator that appear in the collection of all divisors of height functions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_11137 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The five-color hypercube Adinkra and the Jacobian of a generalized Fermat curve Francis, Amanda E. Whitcher, Ursula A. Algebraic Geometry Combinatorics Number Theory 14H57 Adinkras are highly structured graphs developed to study 1-dimensional supersymmetry algebras. A cyclic ordering of the edge colors of an Adinkra, or rainbow, determines a Riemann surface and a height function on the vertices of the Adinkra determines a divisor on this surface. We study the induced map from height functions to divisors on the Jacobian of the Riemann surface. In the first nontrivial case, a 5-dimensional hypercube corresponding to a Jacobian given by a product of 5 elliptic curves each with $j$-invariant 2048, we develop and characterize a purely combinatorial algorithm to compute height function images. We show that when restricted to a single elliptic curve, every height function is a multiple of a specified generating divisor, and raising and lowering vertices corresponds to adding or subtracting this generator. We also give strict bounds on the coefficients of this generator that appear in the collection of all divisors of height functions. |
| title | The five-color hypercube Adinkra and the Jacobian of a generalized Fermat curve |
| topic | Algebraic Geometry Combinatorics Number Theory 14H57 |
| url | https://arxiv.org/abs/2410.11137 |