On the image of code polynomials under theta map
| dc.creator | Oura, Manabu | |
| dc.creator | Manni, Riccardo Salvati | |
| dc.date | 2008-03-31 | |
| dc.date.accessioned | 2026-07-07T09:29:24Z | |
| dc.date.available | 2026-07-07T09:29:24Z | |
| dc.description | The theta map sends code polynomials into the ring of Siegel modular forms of even weights. Explicit description of the image is known for $g\leq 3$ and the surjectivity of the theta map follows. Instead it is known that this map is not surjective for $g\geq 5$. In this paper we discuss the possibility of an embedding between the associated projective varieties. We prove that this is not possible for $g\geq 4$ and consequently we get the non surjectivity of the graded rings for the remaining case $g=4$. | |
| dc.identifier | https://arxiv.org/abs/0803.4389 | |
| dc.identifier | http://arxiv.org/abs/0803.4389 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/157772 | |
| dc.subject | Number Theory | |
| dc.subject | Algebraic Geometry | |
| dc.title | On the image of code polynomials under theta map | |
| dc.type | text |