The ring of $D_{4}$ triality invariants
Abstract
D_{4} triality invariants are modular forms as well as invariant polynomials for a fiber product of the modular group and the Weyl group of type F_{4} . We show that the ring of D_{4} triality invariants satisfying a certain cusp condition is isomorphic to the ring of joint covariants of a binary cubic and a binary quadratic form.
Fields of Study & Subjects
Advanced Algebra and Geometry
Algebraic structures and combinatorial models
Algebraic Geometry and Number Theory
Publication details
- Journal / source
- Annales de l’Institut Henri Poincaré D Combinatorics Physics and their Interactions
- Publication date
- 12 August 2026
- Language
- EN