## Algebra & Number Theory

### A formula for the Jacobian of a genus one curve of arbitrary degree

Tom Fisher

#### Abstract

We extend the formulae of classical invariant theory for the Jacobian of a genus one curve of degree $n≤4$ to curves of arbitrary degree. To do this, we associate to each genus one normal curve of degree $n$, an $n×n$ alternating matrix of quadratic forms in $n$ variables, that represents the invariant differential. We then exhibit the invariants we need as homogeneous polynomials of degrees $4$ and $6$ in the coefficients of the entries of this matrix.

#### Article information

Source
Algebra Number Theory, Volume 12, Number 9 (2018), 2123-2150.

Dates
Revised: 15 June 2018
Accepted: 15 July 2018
First available in Project Euclid: 5 January 2019

https://projecteuclid.org/euclid.ant/1546657276

Digital Object Identifier
doi:10.2140/ant.2018.12.2123

Mathematical Reviews number (MathSciNet)
MR3894430

Zentralblatt MATH identifier
06999504

#### Citation

Fisher, Tom. A formula for the Jacobian of a genus one curve of arbitrary degree. Algebra Number Theory 12 (2018), no. 9, 2123--2150. doi:10.2140/ant.2018.12.2123. https://projecteuclid.org/euclid.ant/1546657276

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