On braided Hopf structures on exterior algebras
Quantum Algebra
2025-12-01 v2 Mathematical Physics
Geometric Topology
math.MP
Rings and Algebras
Abstract
We show that the exterior algebra of a vector space of dimension greater than one admits a one-parameter family of braided Hopf algebra structures, arising from its identification with a Nichols algebra. We explicitly compute the structure constants with respect to a natural set-theoretic basis. A one-parameter family of diagonal automorphisms exists, which we use to construct solutions to the (constant) Yang--Baxter equation. These solutions are conjectured to give rise to the two-variable Links--Gould polynomial invariants associated with the super-quantum group , where . We support this conjecture through computations for small values of .
Keywords
Cite
@article{arxiv.2505.15569,
title = {On braided Hopf structures on exterior algebras},
author = {Rinat Kashaev and Vladimir Mangazeev},
journal= {arXiv preprint arXiv:2505.15569},
year = {2025}
}
Comments
27 pages, this is a major revision with all proofs and new results added